Patent Litigation 2025

BRAZIL Law and Practice Contributed by: Gabriel F Leonardos, Claudio Barbosa and Viviane de Medeiros Trojan, Kasznar Leonardos Intellectual Property

Kasznar Leonardos Intellectual Property offers tailored solutions for complex IP issues both domestically and internationally, with expertise across diverse industries and cultures. Special- ising in intellectual asset management, the firm comprises 20 partners and over 300 attorneys and technical experts, supported by corre- spondents across Brazil and a global network.

Kasznar advises on contracts, acts as an indus- trial property agent with the Brazilian Patent and Trademark Office (BRPTO), and handles litiga- tion, arbitration and mediation. The firm covers all aspects of IP law, including patents, trade marks, designs, copyrights, trade secrets, tech- nology transfer, and more.

Authors

Gabriel F Leonardos is one of Kasznar Leonardos’ senior partners and the head of licensing and litigation, whose areas of expertise include patents, copyrights and unfair

Claudio Barbosa is a senior partner and practising lawyer at Kasznar Leonardos, and spearheads the firm’s specialised patent litigation and counselling team. With decades

competition, trade mark prosecution, arbitration and mediation in IP and contract law. He is a member of FICPI (the International Federation of Intellectual Property Attorneys) and of the Licensing Executives Society (he is a former president of LES Brazil), as well as the honorary president of the German–Brazilian Chamber of Commerce and Industry. Mr Leonardos is also a judge in the Ethics Court of the Inter-American Association of Intellectual Property and the current president of the Brazilian Intellectual Property Association (ABPI).

of experience tackling intricate IP-related issues, Claudio is a highly accomplished lawyer. He advises clients on patents, trade marks, copyright, data protection, and IP-related contractual matters. Claudio is a member of the Brazilian Bar Association (OAB), the International Bar Association (IBA), the Brazilian Intellectual Property Association (ABPI), the Brazilian Association of Industrial Property Agents (ABAPI) and ITechLaw. He holds a doctorate from the University of São Paulo (USP), and two LLMs from USP and George Washington University (GWLaw).

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