LAWYER PROFILE

Grégoire Desrousseaux

France 2026

August Debouzy

Ranked in 1 practice area

Intellectual Property: Patents

France

20 years ranked

About

Provided by August Debouzy

France

Practice Areas

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.

Chambers Review

Provided by Chambers

Chambers France

Intellectual Property: Patents - France

Band 1

Individual Editorial

Grégoire Desrousseaux draws from a wealth of experience and represents clients in complex patent infringement cases, nullity actions and opposition proceedings. He routinely handles cross-border and domestic mandates for clients in the telecommunications, medtech and automotive sectors.

Editorial individuel

Grégoire Desrousseaux s’appuie sur une riche expérience et représente ses clients dans des dossiers complexes de contrefaçon de brevets, d’actions en nullité et de procédures d’opposition. Il s’occupe régulièrement de mandats transfrontaliers et nationaux pour des clients des secteurs des télécommunications, des technologies médicales et de l’automobile.

View ranking table

Strengths

Provided by Chambers

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.
Intellectual Property: PatentsChambers France
Grégoire Desrousseaux knows patent litigation inside out.
Intellectual Property: PatentsChambers France
I would highlight his expertise, responsiveness and knowledge of the cases.
Intellectual Property: PatentsChambers France
Grégoire Desrousseaux connaît le contentieux des brevets sur le bout des doigts.
Intellectual Property: PatentsChambers France
Grégoire Desrousseaux est l'un des meilleurs avocats et experts techniques avec lesquels j'ai travaillé. C'est une personne très compétente et talentueuse, à la fois accessible et attentive.
Intellectual Property: PatentsChambers France
Je tiens à souligner son expertise, sa réactivité et sa connaissance des dossiers.
Intellectual Property: PatentsChambers France