Gabriel Francisco Leonardos

Senior partner at Kasznar Leonardos
Ranked in Brazil
IAM Research

The Patent 1000 focuses exclusively on patent practice and has firmly established itself as the definitive 'go-to' resource for those seeking world-class legal patent expertise.

Gold - Individuals: litigation

Recommended - Individuals: transactions

Top IP firm Kasznar Leonardos demonstrates leadership in Brazilian trademark, patent and designs practice. It takes a holistic approach to resolving problems and advising its clients: “Kasznar Leonardos has strong teams in prosecution and litigation, and is unique in the extent to which it has them overlapping and working together. This collaboration enables it to provide very strategic and comprehensive services.” The group has well-staffed offices in Rio de Janeiro and São Paulo. In the former, patrons are offered a wealth of expertise in prosecution from Gustavo José Ferreira Barbosa, a senior partner who leads the electronics, computer science, aeronautics and industrial designs offering, and medical doctor, lawyer and patent department head João Luis Vianna, who forms an eminent life sciences team with pharmacist Patrícia de Oliveira Lopes and biologist Priscila Kashiwabara. One client, delighted to serve as Priscila’s reference, remarks: “She is extremely knowledgeable and a fantastic strategist when it comes to the prosecution of plant science and biotechnology applications. She also provides quick, direct and to-the-point advice, exactly as I need. I value her guidance very much.” In São Paulo, patrons can expect exemplary service in prosecution from leader of the chemical practice Tatiana Almeida Silveira; and in counselling, transactions and litigation from Elisabeth Kasznar Fekete and Claudio Roberto Barbosa, two of the firm’s most experienced practitioners. Barbosa comes in for vocal praise: “Claudio is highly experienced in patent litigation and a well-qualified professional with deep theoretical knowledge and lots of practical experience. Claudio organises and manages his team very well to achieve the best outcome. He and his colleagues are sophisticated in understanding complex technical matters and explaining them simply and convincingly. Claudio’s client-oriented and creative approach to any legal issue makes his service very appealing.” Kasznar Leonardos has a deep litigation bench and other top advocates, including Rafael Lacaz Amaral and Gabriel Francisco Leonardos, two veterans who excel at presenting legal and technical arguments and getting the best out of diverse teams of lawyers, in-house patent experts and hired technical assistants.

Gabriel Francisco Leonardos's Profile

A senior partner and founder of Kasznar Leonardos, Gabriel Francisco Leonardos has more than 30 years’ experience in intellectual property. Mr Leonardos is a lecturer and professor of IP courses, and has been recognised by international legal and IP guides as one of Brazil’s leading IP lawyers. He acts in IP litigation before the courts; advises on licensing agreements, patents, trademarks, copyright and unfair competition; handles trademark prosecution; and manages arbitration and mediation in IP and contract law. He has also authored many academic papers, as well as a book on international taxation of technology transfer.

Mr Leonardos is a member of the Ethics Court of the Inter-American Association of Intellectual Property. He is also the president of the Special Intellectual Property Commission of Brazilian Bar Association, a member of the Federal Board and chair of the Intellectual Property Committee of the Brazilian Bar Association. In addition, Mr Leonardos is the honorary president of the Brazilian-German Chamber of Commerce of Rio de Janeiro, a former president of LES-Brazil (the Brazilian chapter of the Licensing Executives Society), and president of the Brazilian Association of Intellectual Property for the 2022-2023 term.

Mr Leonardos has a law degree (1986) from the prestigious State University of Rio de Janeiro, a postgraduate diploma in German law (1989) from Ludwig Maximilian University (Germany) and an LLM in financial law (1996) from the University of São Paulo. In 2015 he received the German Cross of Merit and in 2018 he obtained an MBA from the Getúlio Vargas Foundation in Rio de Janeiro. He was a guest research fellow at the Max Planck Institute (Germany) in 1988-1989.

Mr Leonardos speaks Portuguese, English and German.

Firm Profile

We have been building the future for over 100 years.

As innovators by essence, we were built to share and encourage creativity and diversity at all times. With extensive knowledge and experience in various areas of law, we create customised solutions to protect and optimise innovations that help to move the world forward.

Our aim is to offer a wide range of technical, legal and strategic services in the fields of trademarks, domain names, patents, copyright, geographical indications, digital law, unfair competition, trade secrets, confidential data, marketing law, sports law, fashion law, anti-piracy and compliance, industrial designs, technology transfer, franchising and licensing, negotiation of national and international contracts, regulatory law, protection of cultivars, life sciences and biodiversity, including the constant study of public IP policies in Brazil and Latin America.

In addition, we act as legal advisers in contractual matters, including IP licensing, and as lawyers, arbitrators and mediators in different spheres of the judiciary.

In order to provide an increasingly safer environment for our clients, associates and our own team, our firm holds a professional civil liability insurance – E&O; a cyber risk insurance; the NBR ISO 9001 certification, which standardises activities and processes, focusing on customer satisfaction; and is in the process of obtaining the ISO 27001 certificate, which will endorse our best practice in the management of information security.

Our history

Founded over a century ago, in 1919, today Kasznar Leonardos is recognised worldwide for its IP law expertise.

The firm’s specialised team is both willing and able to meet the needs and technical and legal demands of projects in the most diverse sectors, working with companies of all sizes – whether large national companies, international companies and conglomerates, small businesses, start-ups, public entities, or even inventors and authors of works in general.

We are constantly updating our skills, studying public policies related to innovation and technology, both nationally and internationally. One partner at the firm will be in charge of all of a client’s work worldwide, either directly or through our global correspondent network, allowing effective coordination and centralisation of the client’s operation in multiple countries.

Respect and social responsibility

In addition to providing quality services to our clients, we at Kasznar Leonardos are aware of our role as potential drivers of social transformation. The support we provide to Hospital Pequeno Principe, the largest paediatric hospital in Brazil, allows children all over the country to receive better medical care so they can make a difference to society in the future.

Kasznar Leonardos also has a partnership with Camp Mangueira, a national non-profit organisation that provides social assistance and protection to teenagers and youths from poor communities, looking to contribute to the social and economic future of this young generation.

Diversity and inclusion

We recognise the importance of a diverse work environment for any evolving organisation. By valuing our employees and their different world views, lifestyles and means of expression, we affirm their central contribution to our growth. And as respect is a core principle of our work and a key reason for supporting a diverse and inclusive workplace, we value diversity and a respectful professional environment for all, regardless of sexual orientation, gender, colour/race, age and physical/social conditions.

After five years promoting internal actions, we launched our Diversity and Inclusion Programme in May 2020, aiming to foster debates and implement proactive measures inside and outside our office. This initiative is backed by our Diversity and Inclusion Committee, which reports to the firm’s Board of Directors, and our Diversity and Inclusion Task Force, which reports to the Human Resources Department.

Our Annual Planning embraces initiatives focused on four different themes: gender equity, racial equality, persons with disabilities and the LGBTI+ community.

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