--- title: "Grégoire Desrousseaux" id: "780" type: "collaborateur" slug: "gregoire-desrousseaux" published_at: "2025-12-29T09:29:23+00:00" modified_at: "2026-09-02T12:29:12+00:00" url: "https://www.august-debouzy.com/en/collaborateur/gregoire-desrousseaux/" markdown_url: "https://www.august-debouzy.com/en/collaborateur/gregoire-desrousseaux.md" taxonomy_language: - "English" taxonomy_post_translations: - "pll_695249f3e52fb" taxonomy_tax_expertise: - "Intellectual Property" - "Intellectual Property, Media, and Press Litigation" - "Patent Litigation" - "Patents" taxonomy_tax_fonction: - "European Patent Attorney" - "Partner" taxonomy_tax_gouvernance: - "Partners’ Assembly" taxonomy_tax_langue: - "English" - "French" - "German" taxonomy_tax_localisation: - "Paris" --- [Profil Linkedin](https://www.linkedin.com/in/gr%C3%A9goire-desrousseaux-868b1064/) [Voir la page Équipe](https://www.august-debouzy.com/en/team/) # Grégoire Desrousseaux - Positions European Patent Attorney, Partner - Email gdesrousseaux@august-debouzy.com - Phone Number +33145618075 - Languages English, French, German - Location Paris - Bar Paris Bar, European Patent Attorney (EPA) ## Practice Areas - [Intellectual Property](https://www.august-debouzy.com/en/expertise/intellectual-property/) - [Intellectual Property, Media, and Press Litigation](https://www.august-debouzy.com/en/expertise/intellectual-property-media-et-press-litigation/) - [Patent Litigation](https://www.august-debouzy.com/en/expertise/patent-litigation/) - [Patents](https://www.august-debouzy.com/en/expertise/patents/) 0 ## 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 Desrousseaux is one of the best lawyers and technical experts I have worked with. He is a very knowledgeable and gifted individual who is both approachable and attentive. > > Chambers and Partners France 2026 ## Background - 1995 Paris 10 - Université Paris Nanterre | Post-graduate degree (Maîtrise) in Private Law - 1993 Université Robert-Schuman - Université Robert-Schuman | CEIPI (Patents, Trademarks and Designs) - 1991 ENST - ENST (Télécom Paris) | Engineering Diploma - 1989 X - École Polytechnique | Engineering Diploma ## *Rankings and* **Recognition** m - (01)Best Lawyers 2027 - France Technologies Media IP The Best Lawyers in France - (02)IAM 2026 - France Litigation Gold - (03)IAM 2026 - France Transactions Recommended [More distinctions](https://www.august-debouzy.com/en/distinctions/?search_type-collaborateur%5B%5D=gregoire-desrousseaux) ## *Latest* News k [25/03/26 Press release 2 min Legal 500 EMEA 2026 Rankings Legal 500 EMEA 2026 distingue une nouvelle fois August Debouzy, avec 8 expertises classées Tier 1 et plus de 20 autres pratiques reconnues. Une performance qui s’accompagne de nombreuses distinctions individuelles et confirme l’excellence des équipes du cabinet.](https://www.august-debouzy.com/en/press-release/legal-500-emea-2026-rankings/) [13/02/26 Press release 1 min Classement Chambers and Partners | Global Guide 2026 Chambers Global 2026 distingue une nouvelle fois August Debouzy, avec 3 expertises classées et 10 distinctions individuelles, saluant l’excellence et l’engagement de nos équipes.](https://www.august-debouzy.com/en/press-release/classement-chambers-and-partners-global-guide-2026/) [05/02/26 Press release 3 min Chambers and Partners France Guide 2026 Rankings Chambers France 2026 distingue une nouvelle fois August Debouzy, avec 13 expertises classées et 25 avocats reconnus pour leur excellence et leur leadership.](https://www.august-debouzy.com/en/press-release/chambers-and-partners-france-guide-2026-rankings/) [09/01/26 Legal Article 4 min InterDigital v Amazon: The UPC pushback against ASI-Equivalent interim licensing in a post-Brexit landscape In a post-Brexit context falling outside the scope of EU Regulation No 1215/2012 (Brussels I bis), the Local Division of Mannheim the UPC, in its Order of 22 December 2025 (UPC_CFI_936/2025), confirmed in full its ex parte order of 30 September 2025, rejecting Amazon’s application for review.](https://www.august-debouzy.com/en/legal-article/interdigital-v-amazon-the-upc-pushback-against-asi-equivalent-interim-licensing-in-a-post-brexit-landscape/) [14/11/25 Legal Article 14 min Warning letters and disparagement: a recent Supreme Court ruling on copyright and its potential repercussions on patent law In its decision of 15 October 2025 (Cass. Com. No. 24-11.150), the French Supreme Court adopted a particularly strict approach to disparagement. It held that, in the absence of a court ruling establishing copyright infringement, merely informing third parties of a possible infringement constitutes an act of disparagement under Article 1240 of the French Civil Code. The ruling, issued in a copyright dispute, sanctions the sending of warning letters to…](https://www.august-debouzy.com/en/legal-article/warning-letters-and-disparagement-a-recent-supreme-court-ruling-on-copyright-and-its-potential-repercussions-on-patent-law/) 01 05 Précédent Suivant [Explore Our News](https://www.august-debouzy.com/en/le-hub-list/) k News