Grégoire Desrousseaux
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PositionsEuropean Patent Attorney, Partner
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Emailgdesrousseaux@august-debouzy.com
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Phone Number+33145618075
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LanguagesEnglish, French, German
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LocationParis
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BarreauBarreau de Paris, Mandataire agréé près l’Office européen des brevets
Practice Areas
Biography
Grégoire Desrousseaux began his career as a French Patent Attorney before being admitted to the Paris Bar in 2000. He joined August Debouzy as a partner in 2011.
As a member of August Debouzy’s Patents team, he assists French and international clients with all patent-related matters, including advisory work or litigation and oppositions before the French courts, the UPC or the EPO.
A graduate of École Polytechnique and ENST, Grégoire Desrousseaux is both an engineer and a lawyer. His dual background—combining technical expertise with legal solutions—makes him a valuable asset for clients.
Grégoire leads a team of lawyers who share similar engineering backgrounds. He is also committed to sharing his knowledge by teaching patent law at CEIPI (Center for International Intellectual Property Studies) and at engineering schools.
"Grégoire has a deep understanding of technical details and is able to provide in-depth analysis and drafting regarding the legal aspects of the case. He is diligent, committed, technical, knowledgeable and responsive. I enjoy working with him and his team. Grégoire is very impressive in litigation management." - Chambers and Partners
"Grégoire Desrousseaux: incomparable positioning in France. He knows how to adapt to several types of collaboration, he has professionalism and respect for the ideas of others. Very good technical and legal competence. Grégoire Desrousseaux has deep knowledge of French proceedings. In addition, he provides very clear and convincing pleadings in court." - Legal 500
Background
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1995Paris 10 - Université Paris Nanterre | Post-graduate degree (Maîtrise) in Private Law
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1993Université Robert-Schuman - Université Robert-Schuman | CEIPI (Patents, Trademarks and Designs)
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1991ENST - ENST (Télécom Paris) | Engineering Diploma
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1989X - École Polytechnique | Engineering Diploma
Rankings and Recognition
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(01)Chambers and Partners
2026
Intellectual Property
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(02)Chambers and Partners
2026
Intellectual Property
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(03)Chambers and Partners
2025 - Global
Intellectual Property
