Luiz Leonardos & Advogados

Luiz Leonardos & Advogados is an IP boutique with over a century of tradition, being one of the successors of Momsen Leonardos & Cia founded in 1919.

The firm combines the expertise and resourcefulness gained over 100 years of work devoted to intellectual property in Brazil with the advantages of a newly created framework – one that fosters more effective and personal interaction with clients.

Luiz Leonardos & Advogados has 14 partners and over 60 experienced professionals dedicated to all areas of intellectual property. The firm counts with highly specialised attorneys at law, engineers, biologists and pharmacists who can provide all the necessary assistance to protect IP rights before the Brazilian Patent and Trademark Office and the courts.

The team works continuously to provide clients with outstanding IP services in a world that is constantly changing. The firm’s professionals are always alert to the innovations and updates implemented by the Brazilian Patent and Trademark Office in order to provide clients with the best advice, effectively fulfilling their needs.

Luiz Leonardos & Advogados cherishes transparency in its relationship with clients, third parties, service providers and all its peers as they are the firm’s most valuable assets.

In 2019 Luiz Leonardos & Advogados opened a branch office in Sao Paulo, strategically located in the Itaim Bibi neighbourhood – the financial centre of the city – within walking distance of the regional branch of the Brazilian Patent and Trademark Office. The branch’s team of experienced engineers and lawyers is fully prepared to serve the national market and to meet the growing needs of international clients.

The firm’s practice areas encompass antitrust and competition law, contracts, transfer of technology, licensing and franchising, copyright, designs, entertainment and advertising law, food and drug law, geographic 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.

The firm’s patent department is made up of highly specialised professionals with extensive experience in the prosecution of patents in the technical fields of chemistry, life sciences, biotechnology, biochemistry, pharmaceuticals, metallurgy, medical devices, electrical engineering, electronics, systems, telecommunications, mechanical and other non-chemical sciences, as well as in the prosecution of industrial designs, software, plant variety protection and National Health Surveillance Agency issues.

The department services cover the entire patent prosecution process, both in Brazil and abroad. The professionals are skilled in performing patent searches, including freedom-to-operate, prior art and other searches, as well as drafting patent applications, prosecuting patent applications before the Brazilian Patent and Trademark Office and providing patent consultancy. In summary, the team’s expertise enables Luiz Leonardos & Advogados to take all measures necessary to maintain and protect its clients’ rights.

The firm’s trademark and litigation departments are skilled to act on the whole spectrum of work in areas including administrative prosecution and litigation.

Luiz Leonardos & Advogados has deep experience handling all kinds of litigation related to IP rights.

The firm stands as a reference in the management of trademark portfolios, in Brazil and abroad, both for small and large companies. Luiz Leonardos & Advogados performs all the prosecution work, as well as conflict searches and renewals, in addition to filing oppositions, appeals and administrative invalidity procedures. The firm also advises clients on the registration and prosecution of trade names and domain names.

Contact details

Luiz Leonardos & Advogados
Avenida Rio Branco 80
6th floor
Rio de Janeiro
RJ CEP 20040-070

Professional contacts

Other offices

  • Sao Paulo

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