Professionals

Escritório de Advocacia Propriedade Intelectual RJ, SP

Senior Partners

Andréa Possinhas

Partner, Attorney at Law
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Carlos Gruenbaum Lemos

Partner, Attorney at Law
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Claudio José Teixeira Filho

Partner, Attorney at Law
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Isadora Lima

Partner, Attorney at Law
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Leonardo Cordeiro

Partner
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Silvia Micheloni Gruenbaum

Director of New Business
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Our Team

Ana Mattar

Paralegal
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She holds a degree in in Linguistics and Education at the Pontifical Catholic University of Paraná, she began her career in Intellectual Property in 2021 and joined our firm in 2023.

Languages: Portuguese, English and Spanish.

Practice Areas: Patents and Industrial Design.

Anna Beatriz Gouvea

Attorney at Law
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Bachelor of Law from the Cândido Mendes University, with MBA in Intellectual Property, Law and Ethics and in People Management and Leadership from the same University, in addition to several specialization courses in the ​​Intellectual Property area.

Anna Beatriz began her career in the Intellectual Property area in 2016 and, in 2022, joined Gruenbaum, Possinhas & Teixeira as an attorney, acting and coordinating all procedures related to the registration and protection of trademarks abroad.

She was recognized in 2024 and 2025 editions of “The Best Lawyers: Ones to Watch in Brazil” ranking, in the Intellectual Property category, which highlights the rising talent of lawyers who are taking notable steps in their legal careers.

Languages: Portuguese, English and Spanish.

Practice Areas: Trademarks

Bárbara Domingos

Patent Technician
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Bachelor of Mechanical Engineering from Federak Center for Technological Education of Rio de Janeiro, Bárbara has extensive experience in Administrative and Advisory Litigation of Intellectual Property. She has a certificate of completion of the ANPEI Patent Preparation course and the Professional Training Course in Industrial Property of ABAPI-RJ.

Languages: Portuguese and English.

Practice Areas: Patents, Industrial Designs, Software Registries and Plant Varieties.

Carolina Pancine

Paralegal
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Undergraduate student in International Relations at Federal University of Rio de Janeiro.

She started her career in Intellectual Property in 2018 and joined the firm in 2021 as a Patent Paralegal.

Languages: Portuguese, English, Spanish and French.

Practice areas: Patents.

Diego Possinhas

Patent Technician
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Bachelor’s degree in Mechanical Engineering from the Pontifical Catholic University of Rio de Janeiro, joined the firm in 2023, and works as a Patent Technician. He is involved in all technical stages related to patent protection, from prior art searches, patent application drafting, and filing to compliance with requirements, responses, and appeals.

Languages: Portuguese, English, and Spanish.

Practice areas: Patents, Industrial Designs, Software Registration, and Plant Varieties.

Gigliola Dias

Paralegal
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Graduated in Business Administration and Postgraduate in Business and Marketing Management and in English Translation.

She began her career in the Intellectual Property area in 2000 and joined Gruenbaum, Possinhas & Teixeira as a Paralegal in 2020, focusing on National and Foreign Trademarks.

Languages: Portuguese, English, Spanish and French.

Practice area: Trademarks.

 

João Claudio Henrichs

Attorney at Law
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Graduated in Law at Catholic University of Petrópolis, L.LM in Business Law at Getúlio Vargas Foundation and post-graduated in Intellectual Property Law from the Pontifical Catholic University of Rio de Janeiro, he began his career in the Intellectual Property area in 2021.

He has several specialization courses in the area of Intellectual Property, with extensive experience with national and international clients.

He joined Gruenbaum, Possinhas & Teixeira in 2024, working in trademark administrative litigation and judicial litigation.

Languages: Portuguese and English

Practice areas: Trademarks, Copyright, Contracts, Unfair Competition and Litigation.

Lucas Castro

Paralegal
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Bachelor in International Relations from the Pontifical Catholic University of Rio de Janeiro. Has been working in the field of Intellectual Property since 2023, when he joined the law firm Gruenbaum, Possinhas & Teixeira as a Patent and Trademark Intern. Since then, he has gained practical experience in deadline monitoring, report preparation, document organization, and client communication regarding the progress of cases.

Currently works as a Foreign Trademark Paralegal, involved in all stages of international trademark protection, including availability searches, filings, renewals, analysis of office actions, and preparation of responses to official bodies. His role ensures the protection and legal security of clients’ trademarks at a global level.

Languages: Portuguese, Spanish, English, and basic French.
Practice Areas: Trademarks.

Maria Fernanda Lins

Paralegal
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Undergraduate student in the Bachelor’s Degree in Languages (English Language Track) at Federal University of Rio de Janeiro. Began her career in Intellectual Property in 2022 and joined the firm in 2025 as a Patent Paralegal.

Languages: Portuguese and English

Practice Areas: Patents

Mariana Canto

Patent Technician
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Bachelor’s degree in Food Engineering from the Federal University of Rio de Janeiro, joined the firm in 2025 and works as a Patent Technician, handling all technical stages related to patent protection — from prior art searches, drafting and filing of patent applications, to responding to office actions, opinions, and appeals. In addition, she also works with Plant Variety Protection and Registration, managing both the filing process and the analysis and compliance with requirements before the Ministry of Agriculture and Livestock.

Languages: Portuguese, English, French, and Spanish.

Practice Areas: Patents, Plant Varieties, and Industrial Designs.

Mariana Valente

Attorney at Law
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Bachelor of Law from the Federal Fluminense University with several specialization courses in Intellectual Property, Mariana has been working in this field since 2021, particularly in Trademark Law, Trade Dress, and Fashion Law. She has experience in complex cases involving Trade Dress violation and Unfair Competition.

She joined Gruenbaum, Possinhas & Teixeira in 2023, primarily focusing on Advisory, Administrative, and Judicial Trademark matters.

Languages: Portuguese and English.

Practice areas: Trademarks, Unfair Competition, Trade Dress, Fashion Law, Copyright, and Judicial Litigation.

Matheus Tavares

Attorney at Law
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Bachelor of Law from the Federal University of Rio de Janeiro. Matheus started his career in the Intellectual Property area in 2020, having experience in anti-counterfeiting, copyright and trademarks, with extension courses in Entertainment Law and Data Protection.

In 2022, he joined Gruenbaum, Possinhas & Teixeira, focusing on trademark consulting and administrative litigation.

Languages: Portuguese and English.

Practice areas: Trademarks, Copyright, Contracts, Unfair Competition and Digital Law.

Pedro Vilhena

Attorney at Law
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Specialized attorney in Intellectual Property Law and Digital Law.

Bachelor of Laws from Mackenzie Plesbyterian University. Master of Laws  from the University of Strasbourg. Specialist in Immaterial Law from ESA-OAB/SP.

Coordinator of the Privacy and Personal Data Protection Course at ABPI. Deputy Coordinator of the Diversity Committee at ABPI and member of the Diversity and Equity Commission at ASPI.

Member of the Academic Research Laboratory in Intellectual Property at the University of Strasbourg and member of the Intellectual Property Committee of OAB/SP. Guest lecturer at various institutions. Author of articles in areas of expertise.

He was recognized by the Lexology Index – IP 2025 ranking in the category IP: Trademarks, and in the Lexology Index: Brazil 2025 in IP: Trademarks category.

Languages: Portuguese, English, French, Spanish, Italian.

Practice areas: Trademarks, Industrial Property, Digital Law, Judicial Litigation, and Advisory.

Tainá Karklis

Patent Coordinator
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Pharmacy Bachelor from the Federal Institute of Education, Science and Technology of Rio de Janeiro, MBA in Strategic Management of Technological Innovation and Intellectual Property. Bachelor of Law from Cândido Mendes University.

She began her career in the Intellectual Property area in 2011. In 2015, she joined Gruenbaum, Possinhas & Teixeira as a Patent Technician, acting in all procedures related to patent protection, from prior art searches, drafting and submittal of compliance with official action, fulfillment of requirements, statements and appeals, in addition to the entire technical/administrative monitoring of patents in Brazil and abroad.

In 2023 and 2024, she was recognized as IP Leader by WIPR (World IP Review) guide, and by  Leaders League ranking in “Patent Prosecution” category in 2021, 2022, 2023, 2024 e 2025.

Languages: Portuguese, English and Spanish.

Practice areas: Patents, Industrial Designs, Software Registration and Plant Varieties.

Talita Pereira

Patent Technician
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Graduated in Biological Sciences from the Federal University of Rio de Janeiro.

She has been working in the field of Intellectual Property since 2019 and joined the firm in 2022 as an intern, consolidating her knowledge in the Patent area across both technical and administrative stages. She stands out for her efficiency, proactivity, adaptability in addressing the challenges of the field, as well as her communication with clients.

She is currently a Patent Technician, working in all technical stages related to patent protection, including prior art searches, drafting patent applications for inventions and utility models, filing procedures, and handling office actions, responses, and appeals, with a focus on Chemistry and Life Sciences matters.

Languages: Portuguese and English.

Practice areas: Patents, Industrial Designs and Plant Varieties.