Avenida Rio Branco, 80 - 6º andar
20040-070 Rio de Janeiro
Display phone number +55 21 3514 0400
Gustavo Leonardos
Luiz Leonardos
Rodrigo Bonan
Ana Paula Jardim
Patrícia Aragão Lusoli
Andréa Granthon
Carolina Veiga Schueler Cardoso
Pedro Zardo Junior


Luiz Leonardos & Advogados is one of the most traditional IP boutiques in Brazil thanks to its heritage. The firm was part of Momsen, Leonardos & Cia, which was founded in 1919, until name partner Luiz Leonardos left to set up this firm. Leonardos is a time-honoured member of Brazil’s IP law community. He was a member of the Brazilian delegation at the 1967 IP conference in Stockholm that established the World International Property Organization and his team continues to be at the centre of IP developments. They are involved in the latest pilot project agreements between Brazilian and US authorities for cooperation on patents in the oil and gas industry, for example. A big selling point is the firm’s lean, horizontal structure, which helps ensure a high level of partner involvement in cases. Qualified biologists and chemical engineers are included among the firm’s rank and file. Experience in trademarks, industrial design and patent prosecution, as well as legal, regulatory and judicial disputes, between other strings regarding copyrights, unfair competition, domain names, litigation and anti-piracy. It has a high success rate for the patents it files, which makes the firm a stellar choice for companies in Brazil. In 2019, the firm opened its first office in the city of São Paulo, strategically located in the Itaim Bibi neighborhood, the financial center of the city and at walking distance from the regional branch of the Brazilian Patent and Trademark Office.

Alliances and networks: The firm maintains a wide network of key relationships across the globe with the best law firms in all continents.

International experience: focus in provide the best services to the clients, the firm recruits Brazilian attorneys and engineers with multicultural backgrounds who have received additional education and practical skills from prominent law firms and law schools. All professionals are fluent in English, French, Spanish and Portuguese.


  • Antitrust and Competition Law

  • Contracts, Technology Transfer, Licensing and Franchising

  • Copyright

  • Designs

  • Entertainment and Advertising Law

  • Food and Drug Law

  • Geographical Indications

  • Litigation

  • Patents

  • Plant Varieties

  • Privacy and Data Protection

  • Software, Integrated Circuit, Topography

  • Trade Secrets and Confidential Data

  • Trademarks, Trade Names and Domain Names

  • Unfair Competition and Anti-Counterfeiting Measures


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