Thibault Lachacinski is a lawyer at the Paris Bar, specializing in intellectual property law, digital law, and artificial intelligence.
Co-author for the World Intellectual Property Organization of a case law compendium on the application of intellectual property rights (2008; in collaboration with Marie-Françoise Marais, Honorary Judge at the French Court of Cassation), he regularly comments on current intellectual property issues in various specialized journals (Propriétés Intellectuelles, Propriété Industrielle, Dalloz IP/IT, JurisSport, L'Officiel Juridique du Sport, etc.).
For the past twenty years, his practice at the FAJGENBAUM law firm, where he is a partner, has frequently led him to defend his clients' intellectual property rights before French and European courts, both in civil and criminal proceedings.
He has developed particular expertise in protecting the rights of sports event organizers, defending Olympic properties, and safeguarding the intangible assets of local authorities, as well as in the field of geographical indications. He notably represents the interests of major French cultural institutions, foundations, public-interest associations, leading companies, and artists.
Thibault Lachacinski and the FAJGENBAUM law firm are at the forefront of the fight against the undue appropriation of works and creations by generative AI model providers. They advocate for the establishment of a balanced legal framework that regulates the activities of AI providers in respect of the value chain and addresses the specific evidentiary challenges raised by AI.
