Patent Litigation 2026

Last Updated February 12, 2026

Brazil

Law and Practice

Authors



Licks Attorneys is a leading Brazilian law firm in litigation and intellectual property, renowned for its expertise in complex disputes and multidisciplinary strategies in high-profile cases involving disruptive technologies in sectors such as telecom, pharmaceuticals, and chemistry. With a dedicated team of over 350 professionals, including more than 180 skilled attorneys and patent specialists with deep scientific and technical backgrounds, the firm has successfully managed over 3,000 cases since its inception. The firm represents global companies in landmark patent cases and has played a central role in recent litigation involving patent term adjustments and regulatory delays. Its proven track record, strategic innovation and commitment to excellence makes it a top choice for legal services in Brazil.

In Brazil, the protection of inventions is governed by the Brazilian Industrial Property Law (BR IP Statute), based on the Federal Constitution and supported by treaties such as the Agreement on Trade-Related Aspects of Intellectual Property Rights (TRIPs) and the Paris Convention.

The BR IP Statute provides that inventions can be protected by invention and utility model patents. While invention patents cover the protection of products or processes, utility models cover the protection of an object of practical use, or part of it, whose modification results in functional improvement.

Requirements for Granting Patents

The legislation establishes the requirements for granting patents:

Invention Patent (Article 8, BR IP Statute)

The product or process may be protected by a patent if it is endowed with novelty, inventive step and industrial application.

Utility Model (Article 9, BR IP Statute)

The object of practical use, or part of it, may be protected by a utility model if it presents an inventive act, new form or disposition and industrial application.

Non-Patentable Matters (Articles 10 and 18, BR IP Statute)

The BR IP Statute also establishes what is not considered an invention or utility model and, therefore, cannot be the subject of a patent:

  • scientific theories and mathematical methods;
  • purely abstract concepts;
  • schemes, plans, principles or methods of a commercial, accounting, financial, educational, publishing, lottery or fiscal nature;
  • literary, architectural, artistic and scientific works or any aesthetic creation;
  • computer programs per se;
  • the presentation of information;
  • rules of games;
  • operating or surgical techniques and therapeutic or diagnostic methods, for use on the human or animal body;
  • natural living beings, in whole or in part, and biological material, including the genome or germ plasma of any natural living being, when found in nature or isolated therefrom, and natural biological processes.
  • whatever is contrary to morals, good customs and public security, order and health;
  • substances, matter, mixtures, elements or products of any kind, as well as the modification of their physical/chemical properties and the respective processes of obtaining or modifying them, when they result from the transformation of the atomic nucleus; and
  • living beings, in whole or in part, except transgenic micro-organisms meeting the three patentability requirements - novelty, inventive step and industrial application – provided for in Article 8 and which are not mere discoveries.

The prerogative for granting patents in Brazil belongs exclusively to the Brazilian Patent and Trademark Office (BRPTO), a Federal Agency, and the procedure is governed by the Brazilian Industrial Property Statute and regulated by the Guidelines issued by the Agency.

Any individual or legal entity may file an application for a patent or utility model with the BRPTO, which conducts the administrative process for the examination of the presence of patentability requirements.

Average Length of the Procedure to Obtain a Patent

In the last two years, the BRPTO has taken an average of five years and ten months to issue the final decision in a patent application proceeding.

Alongside the ongoing programmes to address the backlog, the BRPTO offers fast-track options, which include Patent Prosecution Highway programmes with the United States Patent and Trademark Office (USPTO), the Japan Patent Office (JPO), and other foreign offices.

Representation

According to Article 216 of the BR IP Statute, a patent application can be filed before the BRPTO by the party or by their attorneys. The Statute provides a specific requirement for those who are domiciled abroad: to maintain permanently a duly qualified attorney resident in the country, with powers to represent the applicant administratively and judicially, including to receive summons (Article 217, BR IP Statute).

Fees

The BRPTO regularly updates its official fees. For the 2026 calendar, the BRPTO’s fees are as follows (considering an exchange rate of approximately USD1 = BRL6):

  • Patent application fees:
    1. USD44 for filing a patent application (invention or utility model);
    2. USD145 for requesting examination of an invention patent application (up to ten claims, with additional fees for each block of 15 claims); and
    3. USD94 for requesting examination of a utility model patent.
  • Patent annuity fees:
    1. For an invention patent (within the term):
      1. pending application – approximately USD67; and
      2. granted patent – between USD167 and USD467, depending on the patent’s age.
    2. For a utility model:
      1. pending application – approximately USD40;
      2. granted patent – between USD100 and USD220, depending on the patent’s age.

The BR IP Statute establishes, in its Article 40, that patents have a term of 20 years, while utility models have a term of 15 years, both counted from the date of filing of the application with the BRPTO.

After the declaration of unconstitutionality of the sole paragraph of Article 40 of the BR IP Statute by the Federal Supreme Court, in 2021, the courts began to receive lawsuits requesting the adjustment of the final term of validity of patents affected by the change promoted by the judgment, but the courts have not yet consolidated a uniform understanding. The issue is also being debated in the Legislative Branch, where bills are being processed aiming to amend the BR IP Statute to establish requirements for the adjustment of the term of validity of patents (as is the case with PL No 1471/2023).

The BR IP Statute foresees that a patent grants its holder the following rights:

  • to prevent unauthorised acts, such as such as manufacturing, using, offering for sale, marketing, importing, stockpiling, receiving and/or hiding a patented product or a patented process;
  • to prevent third parties from contributing to the practice by other parties of the aforementioned acts;
  • to receive compensation for the damages occurred due to the violation of the two previously stated rights;
  • to license the patent’s right of use and to transfer the ownership of the patent.

In its turn, the patent-holder must pay the annual fees and explore the patent subject matter in Brazilian territory, under the risk of extinction and the granting of a compulsory licence.

The patent-holder may file an infringement lawsuit with an injunction request to cease or prevent acts of infringement. Under the BR Code of Civil Procedure and the BR IP Statute, an injunction may be granted in a preliminary or permanent manner.

Finally, patent-holders are not obliged to provide public information, such as patent listings, for specific products or processes, even though they can do so at their own convenience.

Once the term of validity conferred by the BR IP Statute (20 years for patents and 15 years for utility models) expires, there is no additional protection available, and the invention becomes part of the public domain.

The BR IP Statute allows the participation of third parties in the administrative process of patent applications and the administrative and judicial questioning of the fulfilment of the patentability requirements of the patent itself.

The law provides for the exercise of these faculties in three instances:

  • after the publication of the patent application and before the end of the examination of the patent application, any interested third party may submit documents and information relevant to the analysis of the content of the patent application by the BRPTO (Article 31 of the BR IP Statute);
  • within 60 days, counted from the granting of the patent, any interested third party may request the initiation of an administrative nullity proceeding before the BRPTO (Article 231 of the BR IP Statute); and
  • at any time during the term of 20 years of the patent's validity, any interested third party may file an invalidity lawsuit before the Federal Court (Article 51 of the BR IP Statute).

The administrative decision rejecting the patent application may be challenged by appeal addressed to the Commissioner of the BRPTO. Pursuant to Article 212 of the BR IP Statute, the appeal must be filed within 60 days from the publication of the rejection decision and will be considered by the Commissioner of the BRPTO.

Furthermore, with the closure of the administrative instance, the interested party is left to question the administrative decision by filing an invalidity lawsuit of the administrative act before the Federal Court. It is worth noting that, in Brazil, the administered party has a period of five years to question, in court, any administrative act, under the terms of Article 1, Decree No 20,910/1932.

The consequence of the failure to pay the annual fee for the patent application is the filing, while the failure to pay the patent fee results in its extinction, by virtue of Article 86 of the BR IP Statute.

The filing or extinction provided for in Article 86 must be preceded by notification to the applicant or holder, who may, within a period of three months from the notification of filing of the application or extinction of the patent, pay a specific fee to promote the restoration of the application or patent (Article 87 of the BR IP Statute).

The obligation to pay the annual remuneration is supported by Article 84, paragraph 2, of the BR IP Statute, which establishes that the payment must be made in the first three months of each annual period, and may be made within the subsequent six months, subject to the payment of additional remuneration.

After the granting of a patent, it is possible for the claims to be reviewed by the BRPTO in the so-called post-grant opposition proceeding.

This proceeding can be instituted ex officio by the BRPTO or at the request of any person with legitimate interest, within six months from the grant of the patent, as per Article 51 of the BR IP Statute.

The patent-holder is notified to respond to the post-grant opposition within 60 days, after which the BRPTO will issue an opinion, to which the patent-holder and the applicant will have 60 days to respond. Once this period has passed, the proceeding is decided by the Commissioner of the BRPTO, who can conclude for the invalidity of the patent in view of the fact that:

  • any of the legal requisites have not been met;
  • the specification and the claims do not meet the provisions of Articles 24 and 25, respectively;
  • the subject of protection of the patent extends beyond the contents of the application as originally filed; or
  • any of the essential formalities indispensable for grant were omitted during prosecution.

It is worth noting that the effects of the patent are not suspended during the post-grant opposition proceeding, thus the patent-holder can enforce its IP rights while waiting for the final decision.

The most relevant remedies available in Brazil are preliminary and permanent injunctions. The Brazilian legal system offers patent and trade-secret owners the opportunity to request injunctive relief to cease and prevent infringement. Preliminary injunctions are widely available and fast in Brazil, and the requirements are:

  • the likelihood of success;
  • danger of irreparable harm if the injunction is not granted; and
  • balance of hardships.

They may be issued ex parte, that is, before the defendant is served and able to submit arguments.

Injunction Suspension

Additionally, Brazilian law allows the Public Prosecutor’s Office or an interested Public Entity to request that the Chief Justice of the Supreme Court of Justice, if there is a constitutional law issue, or the Chief Justice of the Superior Court of Justice, if there is a federal law issue, stay the effects of a preliminary injunction that may cause harm to the public order, to the health, to the security and to the public economy.

Damages and Attorney Fees

In Brazil, damages are awarded in a compensatory manner, in which the plaintiff is entitled to actual losses and lost profits. There are no punitive or treble damages for wilful infringement, nor any kind of enhanced damages. Each party pays its own counsel, and any expenses are not reimbursed by the party who loses the lawsuit. The winning party is also entitled to a very limited amount for attorney-success fees and the reimbursement of court-related fees.

Criminal Prosecution and Consequences

In Brazil, both patent infringement and trade-secret violation are also criminal offences, but criminal proceedings involving patent and trade secrets are rare. One possible explanation is that the penalties set by the BR IP Statute are low and range from one month to one year of imprisonment or a fine, which is suspended for first offenders.

In Brazil, there are a few remedies at the disposal of third parties who wish to remove the effects of a technical intellectual property right.

Administrative Level

  • Filing of document and information for aiding examination between the publication of the application and the termination of examination, as per Article 31 of the BR IP Statute; and
  • Filing of a post-grant opposition proceeding within six months from the granting of a patent.

Judicial Level

  • Filing of an invalidity lawsuit at any time during the term of the patent. This lawsuit must be filed before a federal trial court and the BRPTO’s participation is mandatory, according to Articles 56 and 57 of the BR IP Statute. In this case, the BRPTO is free to issue its opinion on the validity of the granted claims or side with the plaintiff on the total or partial invalidity of the claims, reviewing the opinion issued at the end of the patent application examination. Furthermore, it is possible for a party accused of patent infringement to argue the invalidity of said patent as a matter of defence, as per Article 56, paragraph 1, of the BR IP Statute.
  • Filing of a declaratory judgment of non-infringement. This lawsuit must be filed before a state trial court and usually mimics the proceeding of an infringement lawsuit. This is because the parties’ allegations of infringement or non-infringement are usually reinforced by expert reports issued by professors of renowned universities and the final decision on the merits takes into account the conclusions of the expert examination.

At Both Administrative and Judicial Level

  • Granting of a compulsory licence if the patent-holder exercises the rights resulting therefrom in an abusive manner or by means of it practises abuse of economic power that is proven under the terms of the law by an administrative or court decision (Article 68 of the BR IP Statute).
  • The BR IP Statute provides for conduct that may result in a compulsory licence:
    1. the non-exploitation of the subject-matter of the patent in the territory of Brazil, by lack of manufacture or incomplete manufacture of the product or, furthermore, by lack of complete use of a patented process, except in the case of non-exploitation due to economic unviability, when importation will be admitted;
    1. commercialisation that does not meet the needs of the market;
    2. national emergency or public interest;
    3. a situation of dependency of one patent on another is characterised;
    4. the subject-matter of the dependent patent constitutes a substantial technical advance in relation to the earlier patent; and
    5. the patent-holder does not come to an agreement with the patentee of the dependent patent for the exploitation of the earlier patent.

Brazil Is a Civil Law Country

Contrary to the US, Brazil is a civil law country, thus the authority of court precedents is limited, usually carrying only persuasive weight. The most relevant laws providing for intellectual property protection are the Federal Constitution, the BR IP Statute (Law No 9,279/1996), the TRIPS Agreement, the Paris Convention for the Protection of Industrial Property, the Copyrights Law (Law No 9,610/1998) and Software Law (Law No 9,609/1998).

Moreover, all civil cases in Brazil are tried solely by a judge. There is no trial by jury in civil court and, even in criminal cases, a trial by jury will only be held in the case of wilful criminal acts against life, such as murder or incitement to suicide. A jury is never used in cases regarding intellectual property.

Bifurcated Judicial System for IP Litigation

Like Germany, Brazil adopts a bifurcated system, in which infringement lawsuits are heard by state courts, whereas invalidity lawsuits are discussed before federal judges. Both state and federal courts hold trial and appellate levels.

In Brazil, there 27 state courts of appeals (one for the Federal District and one for each of the 26 states) and six federal courts of appeals (one for each specific group of states by region).

The BR IP Statute states that the BRPTO must participate in invalidity lawsuits, and the Agency can either defend the title or side with the plaintiff. Moreover, the Constitution and the Code of Civil Procedure determine that lawsuits involving federal agencies, such as the BRPTO, fall under federal jurisdiction.

Briefly put:

  • at trial level, matters are held by federal and state courts;
  • at appellate level, matters are held by federal and state courts of appeals; and
  • at superior courts, issues of federal law are held by the Superior Court of Justice (STJ) and issues of constitutional law are held by the Supreme Court (STF).

Brazilian civil procedure has made efforts to adopt, whenever possible, alternative means of conflict resolution, encouraging judges, lawyers and parties to opt for the consensual route, and has been successful in many areas. Unfortunately, IP is not yet one of them and there is no body specialised in the amicable resolution of disputes involving intellectual property in Brazilian courts.

The closest to this is the Centre for Dispute Resolution, Mediation and Arbitration in Intellectual Property (CSD), a body belonging to the Brazilian Association of Intellectual Property (ABPI), which focuses its performance on the control and management of alternative dispute resolution procedures, including those related to Internet Domain Names, alongside Mediation, Arbitration, Determination by Expert(s) and Online Dispute Resolution System (ODR).

Neither the Brazilian Code of Civil Procedure nor the BR IP Statute establishes prerequisites to filing a lawsuit, there being no need to attest the issuance of a formal demand letter or prior engagement in negotiations.

Despite that,  the demonstration of the issuance of a cease-and-desist letter prior to the filing of an infringement lawsuit, which can also be relevant for future damages claims, can be seen as a sign of good faith by the court.

In Brazil, the parties to legal proceedings involving intellectual property rights must be represented by lawyers regularly registered with the Brazilian Bar Association, by virtue of Article 103 of the Code of Civil Procedure. This rule is applicable to individuals and legal entities domiciled, or not, in Brazil.

The Code of Civil Procedure requires, in addition to representation by a lawyer, the provision of a sufficient bond for the payment of the costs and attorney's fees of the opposing party, in the event that the party does not reside in Brazil and does not have sufficient real estate in the country to ensure such a payment (Article 83 of the CPC). It is important to note that such a requirement may be waived in some cases, for example, if there is an international agreement or treaty providing for it and to which Brazil is a party.

The Brazilian Code of Civil Procedure and the BR IP Statute permit the granting of interim injunctions, even ex parte, conditioned to the demonstration of:

  • the likelihood of success of their claims;
  • the risk of irreparable harm; and
  • that the balance of hardships favours the plaintiff (Article 300 of the CPC, and Article 209 of the BR IP Statute).

To demonstrate the likelihood of its arguments, plaintiffs usually submit technical opinions issued by renowned professors from scientific institutions/universities. Interim injunctions are usually granted under the penalty of a fine for the defendant.

Apart from the gathering of evidence of non-infringement, the fastest ways for a potential defendant to protect itself in an infringement lawsuit are to challenge the preliminary injunction decision and/or to request that the trial judge order the plaintiff to post a bond as a requirement for the granting of an injunction.

Other more strenuous options consist of the filing of a patent invalidity lawsuit before the federal court and/or the filing of a non-infringement lawsuit before the state court. The former option admits a preliminary request to stay the effects of the alleged infringed patent, although this so-called battle of injunctions has yet to be settled by Brazilian courts.

Deadline

The statute of limitations to collect damages for patent infringement is five years, as per Article 225 of the BR IP Statute.

Trigger

There is no statutory or binding decision addressing what triggers the five-year statute of limitations. Local scholars and courts usually adopt three lines of reasoning:

  • The term is triggered when the patent-owner becomes aware of the infringement.
  • The term is retriggered in each act of infringement.
  • The term is triggered when the patent lapses.

Awardable Period

Local scholars and courts also examine the duration of the period that justifies an award of damages. There are two predominant views regarding the awardability of damages: they can be awarded if the acts of infringement are committed:

  • within five years prior to the filing of the complaint; or
  • since the publication of the application in the BRPTO’s Official Gazette or from when the potential infringer is made aware of the patent application before its publishing.

Although Brazilian procedural rules do not support any US-like discovery procedure, the Brazilian Code of Civil Procedure provides mechanisms to obtain relevant information from the other party either before or after formal proceedings have begun. There are two scenarios in which these mechanisms are most commonly used.

  • Enforcement of injunctions. If a defendant fails to comply with a court order, the patent-owner may request additional measures to enforce the decision. While the Code of Civil Procedure does not specify a list of such measures, plaintiffs typically request that:
    1. the court impose a fine for non-compliance or, if a fine was already set with the injunction, to increase its value;
    2. the court order the defendant to deposit the accrued fine;
    3. the court notify public authorities, retailers, and consumers about the injunction; and
    4. the court authorise the search and seizure of infringing goods on the defendant's premises or those of their clients.
  • Preparation for a criminal lawsuit. Prior to filing the criminal complaint against the natural persons responsible for the infringement, patent-owners must initiate a search and seizure proceeding to produce evidence of the crime. Samples of the infringing products and machinery may be sealed and examined by court-appointed experts. Manufacturing processes may also be inspected to assess infringement. The examination is conducted by two court-appointed experts, who will submit a report based on the inspection.

There are no special provisions for lawsuits in intellectual property proceedings that differ from non-intellectual property proceedings, since they follow the same standards applied to any other civil litigation.

As for evidence particularities, it is a common practice for patent-holders to present robust evidence of infringement alongside the complaint to strengthen the likelihood of a decision granting a preliminary injunction request.

This logic is not as strong when talking about invalidity lawsuits, since federal trial judges tend to wait until after the expert examination to render a decision to stay the effects of a patent. In both cases, however, it is customary for both the plaintiff and the defendant to submit technical opinions issued by professors from renowned universities analysing the infringement or the invalidity of a patent.

The Brazilian procedural rules allow representative or collective actions, such as class actions, for intellectual property rights to seek payment for moral and material damages caused to the public as a whole or to the honour or dignity of a racial, ethnic or religious group (pursuant to Law No 7,347/1985). These lawsuits can be filed either by public prosecutors or by a public group that proves the presence of protection for the object of the action in its institutional purposes.

Although the filing of such lawsuits by public prosecutors is not common, there is an increasing tendency by Brazilian Intellectual Property Associations to take matters regarding interpretation of the BR IP Statute, decisions issued by the BRPTO and even the BRPTO’s financial autonomy to court.

The BR IP Statute provides for exceptions to patent infringement in articles 43 and 45. In these situations, a person that practises any of the activities set as infringement would not be held liable.

  • Private and non-commercial use. If an act that would qualify as infringement is practised:
    1. in private;
    2. in a non-commercial manner; and
    3. does not harm the patent-owner, that act does not constitute infringement.
  • Experimental use. Activities for experimental purposes, in connection with scientific or technological studies or research, do not qualify as infringement. However, there are no clear limits in Brazil for the experimental-use exception, especially concerning uses with clear commercial purposes, and courts may adopt a wider or a more restrict interpretation thereof. In any case, the experimental-use exception will only be applicable when the patented product and/or process is the subject of the research. The exception is not applicable to cases where the patented product and/or process is used as a means to the R&D of other products and processes.
  • Preparation of prescribed drugs for individual use. This exception allows the preparation of drugs by compounding pharmacies for individual use, as well as the prescription of drugs by doctors.
  • Exhaustion of patent rights. Once the patent-owner has marketed a patented product or has authorised its marketing in Brazil, they cannot limit the use or marketing of the product by third parties. This exception does not cover the use of patented processes.
  • Non-commercial use of a patented living subject-matter to obtain variations. The use of a patented living subject-matter is not considered infringement if it:
    1. has no commercial use; and
    2. it is used to obtain variations or propagation to obtain other products.
  • Use or sale of patented living subject-matter that does not compete with the patent-owner. In the event that the use of a patented living subject-matter is commercial, the act would not qualify as infringement if:
    1. the product has been marketed by the patent-owner or a licensee; and
    2. the propagation has no commercial use.
  • Bolar exception. Activities seeking to obtain marketing approval, in Brazil or abroad, of a patented product do not constitute infringement, if:
    1. the activities aim to produce information, data and test results; and
    2. the marketing of the product starts after the lapse of the patent.
  • Prior user rights. The user of a patented technology in good faith before the priority or filing date of that patent is allowed to continue the use in the previous form and conditions. Brazilian courts do not provide clear guidelines for the prior-use exception, and the acceptance thereof would depend on the facts of the case.

As a rule, the plaintiff in the infringement lawsuit is the patent-holder, whereas the defendant, as an individual or a legal entity, is the alleged infringer.

Additionally, an exclusive or non-exclusive licensee has standing to request the granting of an inhibitory order, and to seek the payment of damages due to the infringement of the licensed patent, only if the licence agreement foresees it and is recorded by the BRPTO.

Direct Infringement

As provided for in Articles 42 and 184 of the BR IP Statute, direct infringement occurs when a party directly:

  • manufactures;
  • uses;
  • offers for sale;
  • markets;
  • imports;
  • stockpiles;
  • receives; and/or
  • hides,

without proper authorisation, any patented product, patented process or product directly obtained by a patented process. There is direct infringement only if all the claims of the patent are being implemented by a party.

Indirect Infringement

Indirect infringement, in turn, occurs when third parties contribute or induce the acts of direct infringement.

Contributory infringement is specifically contemplated by BR IP Statute at Article 42, paragraph one, which notes that the patent-holder can hinder third parties from contributing to acts of infringement of others.

The criminal section of the patent law carries a specific provision (Article 185) according to which the act of supplying components used in the manufacture of a patented product or materials used in a patented process is also a criminal offence. The provision limits the crime to the situations where the sole use of the component is to infringe the patent. Local commentators dissent on whether the supplier must have actual knowledge that the contribution will lead to the infringement of a patent.

Although patent infringement is considered a crime under Brazilian law, criminal lawsuits involving patent infringement are rare. The penalties prescribed are low and range from three months to a maximum of one year of imprisonment or a fine. The short maximum jail time allows that the penalty be replaced by alternative non-custodial sanctions, such as fines, asset seizures and community service.

Available Remedies

Nevertheless, for both direct and indirect infringement, the patent-holder has at their disposal the option to file an infringement lawsuit as well as a criminal lawsuit (which can be done through two distinct and legal processes, ie, a preparatory search and seizure and a criminal complaint per se).

A patent granted by the BRPTO is protected throughout the Brazilian territory, giving its holder the right to prevent third parties from manufacturing, using, offering for sale, marketing, importing, stockpiling, receiving and/or hiding without proper authorisation, any patented product, patented process or product directly obtained by a patented process.

In Brazilian infringement lawsuits, the BR IP Statute imposes on the party accused of infringing a patent proceeding the burden of proving that its proceeding does not infringe the patent that is the subject of the infringing action (Article 42, paragraph 2º of the BR IP Statute).

As per Article 41 of the BR IP Statute, the extension of the protection conferred by a patent will be determined by the content of the claims as granted by the BRPTO, interpreted in the light of the specification and drawings.

There are several possible defences that someone accused of patent infringement can make use of, for instance:

  • Product and/or process accused of infringement is not covered by the claims;
  • Patent invalidity, which can be raised through the filing of an independent invalidity lawsuit or as a matter of defence (Article 56, paragraph 1º of the BR IP Statute);
  • Prosecution history estoppel;
  • Defence against the triple-identity test;
  • Prior-use rights;
  • Experimental use;
  • Failure of the obligation to present and offer fair, reasonable and non-discriminatory licence terms.

The experts are unbiased court auxiliaries appointed by the Judges to analyse the technical aspects of the case and issue an opinion (Article 156 of the CPC). However, not only can they be consensually appointed by the parties (Article 471 of the CPC), but there is the possibility of the appointment of more than one unbiased expert, when dealing with complex expert examinations embracing more than one field of expertise (Article 475 of the CPC).

The parties must appoint technical assistants, who will work with the court expert. Moreover, the parties may submit questions to the expert and comment on the technical report. Although not mandatory, a hearing to initiate the examination is possible, with the participation of the parties, their technical assistants, and the court-appointed expert.

Under Brazilian law, “the judge is not bound to the expert report”, but the expert conclusions are most often followed by the court.

There is no separate procedure for construing the terms of the patent’s claims according to the BR IP Statute.

As seen in 3.4 Scope of Protection for an Intellectual Property Right, the extent of patent protection is defined by the wording of the claims, which must be interpreted in light of the specification and drawings, as per Article 41 of the BR IP Statute.

When it comes to the construing of claims’ wording, the BRPTO’s Examination Guidelines establishes that claims must be drafted using the connector “characterised by.” All features set forth after “characterised by” fall within the scope of the claimed invention. Any doubts concerning a term used following this expression shall be cleared by the patent specification to interpret the scope of protection accurately.

The Brazilian Code of Civil Procedure allows third parties to participate in patent-related lawsuits as amici curiae, considering the relevance of the matter, the specificity of the subject-matter of the lawsuit or the social repercussion of the controversy.

As a rule, this participation ensures the third party’s right to submit opinions and expert reports, without, however, granting the right to challenge court decisions. Either way, the judge has to define the powers of the amicus curiae in the decision that requests or allows the intervention.

Under Brazilian law, a patent may be revoked or cancelled if it was granted in violation of the provisions of the BR IP Statute. Typical grounds include lack of novelty, inventive step or industrial application, as well as insufficient disclosure or failure to comply with other statutory patentability requirements.

There are two main mechanisms to challenge the validity of a granted patent:

  • an administrative post-grant opposition may be filed before the BRPTO within six months from the grant of the patent; and
  • also, patent validity may be challenged through an invalidity lawsuit before the federal courts and may be filed at any time during the patent term (see 2.2 Third-Party Remedies to Remove the Effects of Intellectual Property).

Additionally, invalidity may also be raised incidentally as a defence in infringement proceedings, although such analysis produces effects only between the parties to the dispute.

Article 47 of the BR IP Statute expressly allows for partial revocation or cancellation of a patent. Invalidity may affect all or only part of the patent claims. In cases of partial invalidity, however, the remaining claims must independently satisfy all statutory patentability requirements, allowing the patent to survive in a more limited form.

Patents may survive such proceedings with a narrowed or amended set of claims, provided that the amendments do not broaden the scope of protection and are strictly limited to addressing the validity objections raised. Any surviving claims must remain fully compliant with the requirements of the BR IP Statute.

As a rule, revocation or cancellation and infringement are not heard together in Brazil (see 2.3 Courts with Jurisdiction [AA1.1]). Invalidity may be raised incidentally as a defence in infringement proceedings (see 4.1 Reasons and Remedies for Revocation/Cancellation), in which case validity is assessed only for inter partes purposes. In practice, separate invalidity lawsuits tend to take longer to reach a final decision than infringement cases.

Brazilian patent litigation is governed by the BR Code of Civil Procedure, supplemented by specific provisions of the BR IP Statute. Depending on the court and the complexity of the matter, technical hearings and trial hearings may take place, particularly in infringement cases. Witnesses to facts are relatively uncommon, while technical evidence plays a central role.

Courts typically appoint an independent and unbiased expert to assist with technical issues, especially claim construction and infringement analysis. The parties may appoint their own technical assistants to participate in the expert examination and submit opinions, but only the court-appointed expert may be subject to cross-examination.

  • As a rule, remedies on the merits and liability are decided first, while damages are usually determined at a later stage, following a separate liquidation phase after the final decision on infringement.

Some of the specific provisions of the BR IP Statute are highlighted as follows:

  • A judge may grant an injunction suspending the effects of a patent if the relevant procedural requirements are fulfilled (Article 56, paragraph 2, of the BR IP Statute).
  • Even if the BRPTO is not the plaintiff, it must participate in the proceedings as a mandatory defendant. It may even agree with the plaintiff's invalidity claim (Article 57 of the BR IP Statute).
  • The patent-owner is granted a 60-day period to respond an invalidity lawsuit, as opposed to the usual 15-day (Article 57, paragraph 1 of the BR IP Statute).

In trial courts, patent cases are decided by a judge from the bench, either in state courts (infringement) or federal courts (invalidity) (see 2.3 Courts with Jurisdiction).

At the appellate level, cases are decided by a panel of judges, typically composed of three members, who render a collective decision following a hearing. Appellate courts may reassess both legal and factual aspects of the case, including the trial court’s evaluation of technical evidence.

Judges are not required to have a technical or scientific background. For this reason, courts rely heavily on independent, court-appointed experts to address technical issues. The court-appointed expert plays a central role in informing the judge's decision, which remains strictly judicial.

The parties have no influence over the selection or appointment of judges. Judicial independence and impartiality are ensured by statutory rules governing conflicts of interest and recusal, and by the career-based system through which judges are appointed and promoted within the Brazilian judiciary.

The parties involved in a patent dispute are free to settle it at any stage of the proceedings. These settlements can be reached privately between the parties or conducted before the court. Brazilian civil procedure also encourages consensual resolutions, enabling judges to promote conciliation or mediation at any stage of the proceedings if a settlement appears feasible.

Depending on the parties’ agreement and the nature of the resolution reached, settlements may result in dismissal with or without prejudice.

In Brazil, infringement and invalidity proceedings may run in parallel. There is no automatic stay of infringement lawsuits pending the outcome of an invalidity lawsuit in the federal courts. Infringement proceedings generally move forward independently.

Although a stay may be requested by the parties involved or ordered by the judge in exceptional circumstances, this is not the standard approach. Jurisdictional challenges and procedural strategies may arise when parallel proceedings are filed. In practice, however, infringement cases are often decided first in the venue where they were initially brought, which often leads to a race to the courts.

Given the strong emphasis on access to justice in Brazilian law, the constitutional mechanisms for defending Brazilian sovereignty, although not uncommon, tend to have no influence on Brazilian court proceedings.

Injunctions are expressly provided under the BR IP Statute and are frequently granted on an urgent basis, often at early stages of the proceedings. In practice, courts may conduct an expedited review of the asserted patent’s merits before ruling on injunctive relief, particularly in cases involving technical complexity or significant market impact.

In addition to injunctions, patentees may seek search and seizure measures and other coercive orders aimed at promptly stopping infringing conduct. Remedies may only be granted upon request of the interested party, but judges retain broad discretion in shaping and enforcing such measures to ensure their effectiveness.

Patentees are entitled to claim past damages arising from infringement, but Brazilian law does not provide for enhanced or punitive damages, even in cases of wilful infringement. To safeguard the effectiveness of future damage awards, courts may order provisional measures, such as periodic deposits into court-managed accounts or the posting of a bond by the defendant.

Enforcement of remedies is usually ensured through sanctions for non-compliance, most commonly daily fines. Depending on the circumstances, courts may also adopt more stringent enforcement mechanisms, including escalating fines, personal liability of company officers in cases of continued non-compliance, and, in specific situations, fines calculated based on the infringer’s revenues, particularly for companies operating through digital or online platforms.

Attorneys’ fees are generally awarded to the prevailing party and borne by the defeated party.

A prevailing defendant is generally entitled to reimbursement of court fees and litigation costs, including attorneys’ fees and the fees of court-appointed experts incurred during the proceedings.

Brazilian law does not distinguish remedies based on the technical nature of the intellectual property right.

When the trial court rules that a patent is valid and has been infringed, injunctions are usually granted along with the decision on the merits and can be enforced immediately. The infringer filing an appeal does not automatically stay the effects of the injunction.

However, a stay pending appeal may be requested from the appellate court and granted in exceptional circumstances, usually where the appellant can demonstrate a clear risk of irreparable harm or serious procedural concerns.

Appeals in patent cases follow the general procedural framework set out in the BR Code of Civil Procedure.

Appeals in patent cases are subject to a full de novo review. Appellate courts may reassess both factual and legal aspects of the dispute, including the evaluation of evidence, within the limits of the issues raised on appeal.

In Brazil, there is no legal requirement for prior-warning or cease-and-desist letters before filing a patent lawsuit. However, before commencing proceedings, parties may incur costs relating to technical opinions, independent expert reports on validity or infringement, official translations and preparatory procedural measures.

In some cases, parties may also seek early evidence procedures to obtain technical findings in advance. As a rule, the interested party is responsible for pre-litigation costs, which are not recoverable. However, costs related to early evidence proceedings may be reimbursed if the party wins the case.

Court fees for patent litigation are value-dependent and calculated according to each court's rules. Although they may vary by jurisdiction and by the type of lawsuit (eg, infringement or invalidity), court fees are generally moderate compared to those in other jurisdictions.

In practice, overall court fees typically amount to around BRL20,000 (USD3,300 - considering an exchange rate of approximately USD1 = BRL6), subject to variation depending on the value of the lawsuit and local procedural rules.

Separate fees are payable for court-appointed experts, who can account for a significant proportion of the total litigation costs in technically complex cases.

The plaintiff is responsible for paying court fees and procedural expenses at the start of the legal proceedings. At the end of the proceedings, the losing party must reimburse the winning party for court fees and recoverable litigation expenses, as well as pay any court-awarded attorneys’ fees.

In cases with mixed outcomes, costs (excluding attorneys’ fees) may be shared between the parties depending on their respective successes. Contractual attorneys’ fees agreed between a party and their legal representative are not reimbursed by the losing party.

Foreign plaintiffs may be required to post a bond to secure payment of court costs, which are usually calculated as a percentage of the value of the lawsuit. However, this requirement may be waived under an applicable international treaty to which Brazil is a party.

Alternative dispute resolution (ADR) is not a court-mandated mechanism for patent disputes in Brazil, and judicial proceedings remain the primary forum for resolving cases involving patent validity and infringement. In practice, patent disputes are more commonly resolved through court litigation, particularly where urgent injunctive relief is sought.

That said, patent cases frequently end in negotiated global settlements once patent rights are enforced successfully and in a timely manner before Brazilian courts. The leverage created by effective judicial enforcement often serves as a catalyst for settlement discussions, rather than ADR proceedings initiated at the outset of the dispute.

While arbitration and mediation are increasingly used in other areas of law and are contractually available in patent-related agreements, they remain relatively uncommon for resolving core patent disputes in Brazil, especially those involving infringement and validity issues.

With regard to the assignment and notations of patent applications and patents by the BRPTO, Article 58 of the BR IP Statute provides that a patent application or patent, the contents of which are indivisible, may be assigned in whole or in part.

On that note, Article 59 of the BR IP Statute establishes that the Autarchy will make the following notations:

  • assignments, mentioning the complete qualification of the assignee;
  • any limitation or onus applied to the application or patent; and
  • alterations of name, headquarters or address of the applicant or patent-holder.

It is important to consider that these notations will take effect with regard to third parties starting from the date of their publication (Article 60 of the BR IP Statute).

As for the assignment of records, the BRPTO requires the following documents:

  • an assignment document to prove the partial or total sale of the patent application, containing the signatures of the parties (assignor/assignee), which may be electronic;
  • articles of incorporation or a related document, if the assignor or assignee is a legal entity, in order to verify whether they have authority to act on behalf of the company;
  • power of attorney;
  • a sworn translation, notarisation and consular legalisation or Hague Apostille of any documents that are not in Portuguese and/or are foreign.

The BRPTO also requests that the documentation clearly indicate the total or partial nature of the transfer.

The procedure for assigning an intellectual property right is set by the BRPTO and, as pointed out in 10.1 Requirements or Restrictions for Assignment of Intellectual Property Rights, requires the presentation of the following documents:

  • an assignment document to prove the partial or total sale of the patent application, containing the signatures of the parties (assignor/assignee), which may be electronic;
  • articles of incorporation or a related document, if the assignor or assignee is a legal entity, in order to verify whether they have authority to act on behalf of the company;
  • power of attorney;
  • a sworn translation, notarisation and consular legalisation or Hague Apostille of any documents that are not in Portuguese and/or are foreign.

If all requirements are met, the notice of assignment is published in the BRPTO Official Gazette and the assignment certificate is subsequently issued.

Requirements

The BR IP Statute establishes that the patent-holder or applicant of the application is free to enter into a licence agreement for exploitation, and the licensee may be vested by the holder with all powers to act in defence of the patent (Article 61of the BR IP Statute).

The BRPTO privileges the freedom to contract, requiring the registration of the licence agreement only for it to produce effects before third parties (so much so that the BR IP Statute itself points out that the need to register the licence agreement with the BRPTO for the purpose of validity of proof of use), according to Article 62 of the BR IP Statute).

In addition, the BRPTO establishes that the improvement introduced in a licensed patent belongs to the person who makes it, and the other contracting party is assured the right of first refusal for its licensing (Article 63 of the BR IP Statute).

Regarding documents, the BRPTO requires the presentation of the contract, invoice, addendum or instrument representing the contractual act and proof of payment of the payment slip, as well as translations and powers of attorney.

New Exchange Rate Framework

The Foreign Exchange Reform Law (Law No 14,286/2021) marked a turning point in Brazil’s regulatory framework for international transactions. By modernising the country’s currency regime, the law introduced greater flexibility and aligned Brazil more closely with global standards.

Under this new framework, contracting parties now enjoy broad freedom to define royalty rates, payment structures, and financial terms in technology transfer and licensing agreements. The rigid caps and restrictions that previously limited the scope of negotiations were eliminated, allowing agreements to reflect the true commercial value of the licensed technology.

Despite this liberalisation, registration with the BRPTO remains mandatory for the remittance of royalties abroad and for tax-deductibility purposes. The BRPTO’s role, however, has shifted from substantive regulator to registrar, ensuring compliance with procedural requirements rather than interfering with the economic terms of contracts.

This reform places Brazil in line with international best practices, facilitating cross‑border licensing and technology transfer. For foreign companies, including Chinese stakeholders, the new regime reduces regulatory friction, enhances predictability, and strengthens Brazil’s attractiveness as a destination for investment and technology collaboration.

Contracts submitted for registration with the BRPTO must include the original document or a certified copy, together with a sworn Portuguese translation if the agreement was executed in another language, as well as proof of payment of the applicable BRPTO fees. Once the requirements are met, the BRPTO issues an annotation certificate confirming the registration. In this certificate, the BRPTO indicates basic information of the agreement, such as the parties, nature of the licence (exclusive or not) and the term of the licence.

It is important to note that, without registration, contracts remain valid between the parties but cannot be enforced against third parties. In addition, royalty remittance abroad may be blocked, making registration a critical step for ensuring both the legal effectiveness and the financial operability of licensing and technology transfer agreements in Brazil.

Licks Attorneys

Av. Oscar Niemeyer, 2000 9th floor,
Aqwa Corporate Rio de Janeiro,
RJ - Brazil 20220-297

+55 21 3550 3700

+55 21 3956 9444

info@lickslegal.com lickslegal.com
Author Business Card

Trends and Developments


Authors



Montaury Pimenta, Machado & Vieira de Mello is widely recognised for its leadership and extensive experience in patent litigation across a broad range of technical fields. The patent litigation team combines deep legal knowledge with strong technical expertise to handle complex, high-stakes disputes involving cutting-edge technologies. The firm’s SEP practice spans all stages of litigation, including validity and essentiality analyses, enforcement and defence strategies, and FRAND-related proceedings before judicial and administrative authorities, and has built a solid reputation before Brazilian courts for handling sophisticated SEP disputes. It is one of the few firms in Brazil with continuous involvement in high-profile SEP cases, having successfully revoked preliminary injunctions and obtained favourable first- and second-instance decisions in ICT matters. The team is well versed in the intersection of patent, competition and regulatory law, and works closely with global counsel to deliver pragmatic, business-oriented outcomes aligned with international SEP frameworks.

Brazil in the Global SEP Arena: Litigation and Enforcement Trends in 2025

A more complex and strategic patent litigation landscape

Patent litigation in Brazil has undergone significant transformation over recent years, particularly in disputes involving Standard Essential Patents (SEPs). What was once a jurisdiction perceived as slow and procedurally rigid has become an increasingly strategic forum for SEP enforcement. This shift has been driven by procedural flexibility under the Brazilian Code of Civil Procedure, growing judicial familiarity with complex technology disputes, and the active role of specialised business courts.

Recent data confirms this evolution. SEP litigation in Brazil was limited for many years, with only scattered cases between 2012 and 2022. The number of lawsuits began to rise in 2023, but the real turning point came in 2025, when filings reached about 45 lawsuits – 38 infringement actions and seven declaratory actions seeking non-infringement and/or royalty-setting (these figures are based on a comprehensive review of all publicly available SEP cases in Brazil, acknowledging that some proceedings remain under seal and may not be visible in official databases or press reports). This highlights both the scale and the pace of change, providing a practical lens for readers to navigate current litigation dynamics.

It is possible to verify trends across filing chronology, technologies and litigants, showing a pronounced focus on video-related implementations (HEVC/AVC/AAC), sustained activity by patent pools such as Access Advance, and pressure tactics marked by multiple suits against the same target within short timeframes – up to eight actions against Transsion and, more recently, four against Hisense, with Nokia appearing as the most frequent plaintiff by a wide margin.

Against this backdrop, all infringement actions have been concentrated in the Rio de Janeiro Business Courts, while non-infringement and royalty-setting actions have been filed in São Paulo. This dual-track dynamic has triggered a jurisdictional “forum battle”, comparable to those seen in cross-border SEP disputes in Europe and Asia, where parties resort to anti-suit and anti-anti-suit injunctions to secure the most favourable venue. As a result, an additional layer of strategic complexity has emerged for global players litigating and negotiating SEP portfolios in Brazil.

In fact, Brazil is now firmly on the map of global SEP litigation strategy. It has moved from a peripheral jurisdiction to a strategic arena comparable to the US, Europe and Asia, where forum battles and FRAND debates are central to litigation dynamics.

This article explores the main trends and developments shaping SEP enforcement and patent litigation in Brazil. It focuses on the infringement actions, preliminary injunctions, parallel nullity proceedings, jurisdictional disputes and procedural tools that have become central to litigation strategy in 2025.

Infringement actions and the strategic use of preliminary injunctions

In SEP litigation, preliminary injunctions (PIs) have emerged as one of the most contentious and strategically relevant features of Brazilian proceedings. Plaintiffs frequently seek urgent relief to restrain the alleged use of the patented technology while the merits and technical evidence phases remain unresolved, thereby increasing commercial pressure and accelerating licensing discussions.

Some PI requests expressly mention the withdrawal of the accused products from the market, while others seek only an order to cease the use of the patented technology, without expressly requiring product withdrawal. This distinction – both in the relief sought and in the resulting judicial orders – has led practitioners and some judges in Brazil to distinguish between the two following practical categories of PIs.

  • Conditional preliminary injunctions are contingent upon confirmation of infringement by an independent court-appointed expert. In these cases, daily fines are imposed retroactively once infringement is established, but the orders typically lack immediate practical effects on the defendant’s commercial activities.
  • Unconditional preliminary injunctions take immediate effect, ordering the defendant to cease the alleged infringement and withdraw the accused products from the market without awaiting further technical assessment.

Patent holders typically seek this relief at the outset of the proceedings in order to obtain immediate and practical effects. These include orders to cease manufacturing, prevent importation or commercialisation, remove products from the market or stop the use of a patented process.

When assessing anticipatory urgent relief, courts focus on two cumulative requirements:

  • the likelihood of success on the merits; and
  • the risk of irreparable harm.

In an effort to meet the first requirement, plaintiffs in SEP infringement actions usually rely on a set of technical documents to demonstrate to the judge the need for a PI. This evidentiary package usually includes:

  • a valid and enforceable patent granted by the Brazilian Patent and Trademark Office (BPTO);
  • a claim chart mapping the patent claims to the technical specifications of the standard, to argue essentiality; and
  • one or more technical opinions prepared by experts retained by the plaintiff, often affiliated with federal universities.

However, these unilateral reports often focus primarily on asserting the essentiality of the patent to the standard, rather than providing a full and independent analysis of actual infringement in the accused implementation.

Legal and technical opinions, together with evidence of prior licensing, are often submitted to support the commercial relevance of the patent, whereas the definitive assessment of infringement is deferred to an independent court-appointed expert examination, which typically commences within six to nine months from the filing of the action.

The risk of irreparable harm is typically framed in terms of ongoing competitive damage. Courts frequently accept arguments relating to market erosion, price pressure, loss of technological exclusivity and the difficulty of accurately quantifying damages at a later stage. The risk of trivialising patent protection through continued unauthorised use is also a recurring theme. At the same time, however, PIs can significantly disrupt commercial activities, often forcing implementers into expedited settlements irrespective of the ultimate merits of the case.

It is undisputable that the growing volume of SEP litigation before the Rio de Janeiro Business Courts has significantly enhanced judges’ technical familiarity with these disputes. Courts are now more aware of the high level of technological and economic complexity involved, and of the potential impact that Brazilian proceedings may have on global enforcement and licensing strategies.

In this context, and mindful of the risks associated with granting PIs on an ex parte basis, judges are increasingly relying on court-appointed technical expert evidence when assessing PI requests – a shift that has begun to reshape judicial practice in this area, especially in terms of how courts approach PI requests, which will be explored in the following section.

The central role of technical expert evidence

Expert evidence is a cornerstone of patent litigation in Brazil, as it is expressly required by Article 464, Section 1, item I, of the Brazilian Code of Civil Procedure whenever the proof of a relevant fact depends on specialised technical knowledge.

In this context, the issuance of a decision on the merits almost invariably requires a technical expert phase conducted by an independent court-appointed expert. In SEP disputes, expert analysis typically addresses whether the patent is indeed essential to the standard and whether the accused products implement the relevant technical specifications. These assessments are highly complex and time-consuming, and depend on specialised technical knowledge related to the subject matter of the patent that is being enforced.

Accordingly, although the court-appointed expert’s conclusions are not formally binding, judges tend to heavily rely on such technical assessments when rendering decisions on the merits.

More recently, however, technical expert evidence has gained relevance not only for adjudicating the merits of the case, but also for assessing PI requests filed by plaintiffs at the outset of the proceedings.

While PIs were frequently granted on an almost ex parte basis in the past, grounded primarily on unilateral technical reports submitted by plaintiffs, courts are increasingly requiring some form of expert input before analysing/granting urgent relief. This input can take the following forms.

  • Regular technical examination, following the standard procedural timetable. In these cases, when the PI request is not immediately denied, the court may defer its analysis until the court-appointed expert submits the technical report to the case records, which may take up to six months from the commencement of the lawsuit.
  • Simplified expert reviews, limited to a preliminary assessment of whether the patent is essential to the standard. This stage does not replace nor preclude the subsequent regular technical examination on infringement and other technical issues.

However, early attempts to streamline this process through utilising “simplified expert reviews” from the outset were quickly abandoned, as this created more uncertainty than clarity and failed to provide judges with reliable technical footing. It also prevented parties from submitting technical questions, leading to a limitation of adversarial testing and drawing criticism from litigants.

In general, recent case patterns confirm a strong correlation between the type of expert examination and injunction outcomes, as follows.

  • In 2023–2024, four regular technical examinations were conducted, with PIs granted in three of those cases even before the expert reports were delivered.
  • By contrast, six cases were assigned to regular examinations in 2025, and five injunctions were granted at the outset. In 11 other cases where injunctions were denied, judges opted for expedited examinations as a way to accelerate technical clarification, instead.
  • Simplified reviews were used only once in 2025, and also failed to support injunctions.

In short, the current landscape can be summarised as follows.

  • Regular expert examinations are historically associated with higher PI grant rates.
  • Expedited examinations are increasingly used as an alternative to the granting of PIs in a faster manner; courts defer relief until technical clarity is achieved.
  • Simplified/preliminary reviews are not common. They are judge-specific, and largely ineffective for PI decisions.

This evolution reflects a broader judicial effort to reduce the “lottery effect” of fragmented practices, and to ensure decisions are grounded in technical accuracy. The abandonment of simplified reviews, combined with the cautious use of expedited examinations, shows that courts are calibrating their reliance on expert evidence to balance speed with reliability.

In practice, expediting the beginning of the technical examination phase is a pragmatic compromise that is gaining acceptance among an increasing number of judges: while they have been rejecting PI requests at the outset of the lawsuit, especially on an ex parte basis, they are accelerating the technical evidence phase, allowing disputes to move forward with greater predictability and procedural fairness.

The Brazilian bifurcated judicial system: when infringement disputes meet invalidity disputes

SEP litigation in Brazil operates within a bifurcated judicial system, in which infringement and validity are decided by different courts. Infringement disputes are brought before State Courts, while patent nullity actions must be filed against the patentee and the BPTO before the Federal Courts.

State Courts are the forum where patentees seek injunctive relief, damages and leverage in licensing negotiations. The Business Courts in Rio de Janeiro have emerged as a particularly active venue for SEP disputes. As a result, judges are increasingly familiar with the technical and economic context in which SEP disputes arise.

On the other hand, lawsuits seeking the declaration of nullity of a Brazilian patent must be filed before the Federal Courts, with the BPTO named as a mandatory defendant alongside the patentee. Nullity actions therefore run in parallel to infringement proceedings and are structurally separated from them, tending to take longer than the infringement actions.

In the SEP context, nullity actions are rarely filed pre-emptively. This is due to the fact that SEP portfolios often comprise hundreds or even thousands of patents, particularly those managed through patent pools. Implementers are not expected to challenge the validity of an entire portfolio in advance, especially as not all declared SEPs are necessarily essential or actually implemented by the accused products.

As a result, nullity actions are commonly filed only after an infringement claim has been brought and a specific patent has been asserted against the implementer. The defendant typically becomes aware of which particular patent is being relied upon by the time of the service of process, triggering the decision to challenge its validity before the Federal Courts.

A recurring issue is whether the infringement action should be stayed while pending the outcome of the nullity case, since Brazilian law allows for suspension where the validity decision is prejudicial to the infringement dispute. Courts have adopted a case-by-case approach. Stays are more likely to be granted where the nullity action is at an advanced stage or where there are strong prima facie indications of invalidity. Thus, judges have shown sensitivity to the risk of conflicting outcomes and have sometimes tailored procedural calendars accordingly.

Although Brazil adopts a bifurcated structure for patent litigation, defendants in infringement actions are also allowed to raise patent invalidity as a defence before the State Courts, pursuant to Article 56, Section 1, of the Brazilian Industrial Property Law, which expressly allows nullity to be argued at any time as a matter of defence. In this context, State Courts are authorised to examine validity arguments, and may even recognise patent invalidity in an incidental manner, with effects being limited to the parties to the dispute (inter partes effects), without affecting third parties.

While such incidental findings do not produce erga omnes effects, if invalidity is subsequently confirmed by the court-appointed expert and recognised by the trial court within the infringement proceedings, the declaration operates retroactively to the patent application’s filing date, producing effects as if the patent had never existed inter partes. As a result, the infringement action is dismissed due to loss of subject matter.

In SEP disputes, the ability to challenge validity directly within the infringement proceedings provides defendants with an immediate procedural mechanism to counter enforcement efforts, without having to await the outcome of separate federal nullity actions. Both measures have pros and cons and must be carefully analysed on a case-by-case basis.

Declaratory actions (São Paulo State Courts)

Declaratory actions have gained prominence as a proactive defensive tool in Brazil. All declaratory lawsuits filed so far have been brought before the São Paulo Business Courts, with no exceptions to date. They often combine multiple objectives: permanent or even interim licences, declarations of non-essentiality for selected sets of patents, and broader FRAND-related relief.

The strategic rationale is clear: by filing first, implementers seek to control the narrative, reduce the risk of PIs in infringement actions brought in Rio de Janeiro, and build a judicial record that strengthens their negotiating leverage. This has become particularly relevant because, until 2024, Rio courts had high grant rates for PIs. Declaratory filings in São Paulo thus serve as a counterweight, aiming to neutralise pressure tactics and ensure that licensing discussions are framed under judicial oversight.

Courts have generally accepted the legitimacy of declaratory actions, provided there is a concrete legal interest and a credible threat of enforcement. Recent filings illustrate this trend, with implementers requesting not only recognition of non-infringement but also judicially supervised FRAND licences and determinations of non-essentiality, reinforcing their status as willing licensees and shaping the jurisdictional balance between Rio and São Paulo.

Forum shopping allegations and judicial response

Forum shopping is a recurring accusation in SEP disputes. Claimants may choose forums that are perceived as being more receptive to injunctions, while defendants may file declaratory or nullity actions elsewhere. This has led to a jurisdictional battle between Rio de Janeiro and São Paulo.

Judges in Rio have resisted arguments of prevention raised by defendants, insisting on retaining jurisdiction over infringement suits. In contrast, São Paulo judges have gone so far as to declare connection and prevention, and even to raise positive conflicts of competence before the Superior Court of Justice, to avoid contradictory outcomes.

These conflicts have already materialised in practice, with São Paulo courts explicitly framing declaratory suits as “umbrella actions” to consolidate disputes and prevent fragmented litigation, while Rio courts continue to prioritise patentees’ infringement claims.

Brazilian courts have become more alert to these tactics. Allegations of abusive litigation strategies are increasingly addressed explicitly in judicial decisions. The emerging RJ × SP conflict mirrors those seen in cross-border SEP disputes in Europe and Asia, where parties resort to anti-suit and anti-anti-suit injunctions to secure the most favourable venue.

A few years ago, another tactic adopted by plaintiffs was the filing of validity actions (ie, seeking judicial confirmation of patents that were already formally valid) before the Federal Courts in Brasília, rather than before the Federal Courts in Rio de Janeiro, which traditionally handle a large volume of patent nullity cases due to the Brazilian Patent and Trademark Office being headquartered there. The apparent strategic objective of this practice was to secure jurisdiction over the validity dispute and, in doing so, prevent implementers from filing nullity actions before the Rio de Janeiro Federal Courts, which are widely regarded as a more specialised, experienced and faster forum for patent litigation.

This practice, however, was increasingly questioned by practitioners and judges, as there was no clear procedural justification for patentees to file infringement actions in the Rio de Janeiro State Courts while choosing to litigate patent validity in a different federal jurisdiction located more than 1,100 km away.

Over time, courts became more sceptical of this forum selection strategy, particularly where it appeared to be driven by tactical considerations rather than genuine jurisdictional criteria. This trend reflects a broader concern with balancing patent enforcement with competition and due process considerations. Going forward, close attention will be paid to the decisions of the Rio de Janeiro Court of Appeals in pending SEP cases and to the Superior Court of Justice’s rulings on conflicts of competence, as these will shape the contours of forum selection in Brazil.

Competition law and FRAND considerations

Although Brazil does not have specialised FRAND legislation, competition law arguments have become central in SEP litigation.

When SEP cases first reached Brazilian courts, judges generally disregarded FRAND-related arguments, focusing exclusively on infringement and validity. Over time, however, some judges began to address FRAND obligations more cautiously, even treating the parties’ conduct during negotiations as a relevant factor in assessing PI requests.

A turning point came with Judge Victor Augustin’s decisions, which combined jurisdictional issues (such as prevention and “umbrella actions”) with a substantive FRAND analysis.

In Dolby v Roku, Augustin explicitly framed FRAND as a central requirement. Rather than attempting to set a numerical royalty rate, he adopted a disjunctive approach – ie, asking whether the licensor’s offer was FRAND or not. This methodology aligned Brazilian practice with international precedents, notably Huawei v ZTE, and underscored that a failure to make a FRAND offer could lead to denial of injunctive relief.

This evolution shows a growing judicial awareness of global SEP jurisprudence and the need to balance patent enforcement with competition principles. While still cautious, Brazilian courts are beginning to integrate FRAND considerations into the core of SEP disputes, moving beyond peripheral references to make them decisive in both interim and merits outcomes.

Recent decisions also highlight that FRAND analysis is not limited to royalty rates: courts have started to scrutinise negotiation conduct, non-discrimination among licensees, and the disclosure of comparable agreements under judicial supervision.

While increased attention to FRAND-related aspects is gaining traction, this approach remains at an early stage and has not yet been adopted by all judges handling SEP disputes before the Rio de Janeiro State Courts. As pending cases move forward, close monitoring will be essential to assess how FRAND principles will consolidate within Brazilian jurisprudence.

Practical implications for rights holders

For patentees, Brazil offers meaningful enforcement opportunities but requires careful planning. Aggressive PI strategies may backfire if not supported by strong evidence and procedural discipline.

Early technical preparation, awareness of nullity risks and readiness to post security are increasingly important. SEP holders must also be prepared to address FRAND and competition arguments substantively, in view of the maturity of the legal environment in Brazil.

Practical implications for implementers

For implementers, Brazil provides a range of defensive tools. Parallel nullity actions, non-infringement and royalty-setting actions, as well as the strategic use of expert evidence, can significantly influence outcomes.

Vigilance regarding interim relief throughout the proceedings is critical. Implementers should also be prepared to challenge jurisdiction and request security where appropriate.

Conclusion: Brazil as a mature SEP litigation forum

Brazilian patent litigation, particularly in the SEP context, has reached a new level of complexity and maturity. Courts are no longer addressing SEP disputes as “common patent disputes”, nor solely through the lens of infringement and validity, but are increasingly engaging with procedural co-ordination, technical accuracy, proportionality of remedies and competition-related considerations. This reflects a broader judicial awareness of the economic and technological implications of SEP enforcement.

The trends observed in 2025 indicate that Brazil is no longer a peripheral or secondary jurisdiction in global SEP disputes. Instead, it has become a forum that demands strategic attention and careful navigation. For clients doing business in Brazil, understanding these developments is essential to manage risk and leverage opportunities in an increasingly sophisticated litigation environment.

Montaury Pimenta, Machado & Vieira de Mello

Av. Almirante Barroso, 139
7º Floor, City centre
Rio de Janeiro
Brazil 20.031-005

+55 21 2524.0510

montaury@montaury.com.br montaury.com.br
Author Business Card

Law and Practice

Authors



Licks Attorneys is a leading Brazilian law firm in litigation and intellectual property, renowned for its expertise in complex disputes and multidisciplinary strategies in high-profile cases involving disruptive technologies in sectors such as telecom, pharmaceuticals, and chemistry. With a dedicated team of over 350 professionals, including more than 180 skilled attorneys and patent specialists with deep scientific and technical backgrounds, the firm has successfully managed over 3,000 cases since its inception. The firm represents global companies in landmark patent cases and has played a central role in recent litigation involving patent term adjustments and regulatory delays. Its proven track record, strategic innovation and commitment to excellence makes it a top choice for legal services in Brazil.

Trends and Developments

Authors



Montaury Pimenta, Machado & Vieira de Mello is widely recognised for its leadership and extensive experience in patent litigation across a broad range of technical fields. The patent litigation team combines deep legal knowledge with strong technical expertise to handle complex, high-stakes disputes involving cutting-edge technologies. The firm’s SEP practice spans all stages of litigation, including validity and essentiality analyses, enforcement and defence strategies, and FRAND-related proceedings before judicial and administrative authorities, and has built a solid reputation before Brazilian courts for handling sophisticated SEP disputes. It is one of the few firms in Brazil with continuous involvement in high-profile SEP cases, having successfully revoked preliminary injunctions and obtained favourable first- and second-instance decisions in ICT matters. The team is well versed in the intersection of patent, competition and regulatory law, and works closely with global counsel to deliver pragmatic, business-oriented outcomes aligned with international SEP frameworks.

Compare law and practice by selecting locations and topic(s)

{{searchBoxHeader}}

Select Topic(s)

loading ...
{{topic.title}}

Please select at least one chapter and one topic to use the compare functionality.