About Sebastián Meythaler

Sebastián Meythaler heads the IP litigation department at Meythaler & Zambrano. Since joining the firm in 2014, he has led complex, high-stakes patent litigation, including infringement, nullity, and compulsory licence actions. Notably, he prevailed in the landmark 2023 ruling by Ecuador’s National Court of Justice, which annulled an improperly granted pharmaceutical licence, dismissed a USD5.29 million counterclaim, and secured a million-dollar compensation. He advises a portfolio of multinational innovators – such as Pfizer, Merck, Bayer, Novartis and leading agrochemical groups – on regulatory-driven IP strategies, including test data protection and biosimilar injunctions. Sebastián combines technical precision with proactive settlement strategies to deliver swift, enforceable outcomes in complex IP disputes.

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