16 patent attorneys
Patent filing and EPO oppositions for Arkema/Bostik, Japan Tobacco, JT International, Lesaffre. Filing for Dassault Systèmes, Huami, Mimaki Engineering, Sartorius, Toshiba, Total Energies, Toto, Wella (all public knowledge).
Paris
42 patent attorneys
Patent filing and oppositions for Safran. Patent filing for Aisin, Amphenol, BIC, Decathlon, Delta Electronics, Erca, EvCon, Heartflow, Idemia, Kubota, Lungpacer Medical, LVMH Recherche, Mitsubishi Heavy Industries, MAPA, Micron Technology, Orange, Roxia System, Thermwood, Toyota, Veolia Environnement, Valprosid (all public knowledge).
Paris, Lille, Lyon, Marseille, Nantes, Rennes, Strasbourg
15 patent attorneys
Patent filing and oppositions for Ceva, Genethon, HRA Pharma and CNRS. Patent filing for Anagenesis Biotechnologies, Biomunex Pharmaceuticals, Cap Biomaterials, Cellular Biomedicine, Columbia University, the French Alternative Energies and Atomic Energy Commission (CEA), ENYO pharma, Genfit, Inserm, Innate Pharma, Institut Curie, Institut Pasteur, Interhealth, Inversago Pharma, Korea Institute of Radiological & Medical Sciences, Mojia Biotech, Neonc, Nanobiotix, National University of Singapore, National Cheng Kung University (Taiwan), OSE Immunotherapeutics, Sirio Pharma, Stembios Technologies, Pfizer, Université Paris Cité, University of Sheffield, Veracyte, Yoplait (all public knowledge).
Paris
26 patent attorneys
EPO oppositions: Biogaran against Biogen over multiple sclerosis drug Tecfidera; Rio Tinto Alcan against Trimet Aluminium over molten salt electrolysis system for producing aluminium. Filing and EPO oppositions for Biogaran, Cellectis, L’Oréal, Total Energies, Renault, Vallourec. Filing for Arkema, Canon Kabushiki Kaisha, Institut Pasteur, Safran, STMicroelectronics (all public knowledge).
Paris, Beaune, Grenoble, Lyon, Montpellier, Toulouse
33 patent attorneys
Patent filing and oppositions for Bunge, SEB, TE Connectivity. Patent filing for 3D Industrial Imaging, ABB, Aldes Aeraulique, Aptabio Therapeutics, Astom, Becton Dickinson, Bourgeat, CNES (Centre National d’Etudes Spatiales), the French Alternative Energies and Atomic Energy Commission (CEA), Diam Bouchage, Inteva, Keiwa, Manitowoc Crane Group, Mitsubishi Cable Industries, Novares, Opinel, Safran, SEB, Somfy, Sofradim Production, Tyco Electronics, U-Shin, Vicat, Volvo Trucks and Volvo Construction Equipment (all public knowledge).
Lyon, Paris, Grenoble, Marseille, Rennes
44 patent attorneys
Patent filing for Alegina, Assa Abloy, Atlantic Industrie, Bucher Vaslin, Cartier, CGG Services, CNRS, Essilor, GE Energy Products France, Hydrokit, King Abdullah University of Science and Technology, King Fahd University of Petroleum and Minerals, Manitou, Rhodia Operations, Renault, Revibat, Sanechips Technology, Segasel, Sercel, Société Cartel, Sphere, Vega, ZTE (all public knowledge).
Paris, Anneys, Bordeaux, Grenoble, Lyon, Mulhouse, Nice, Saint-Etienne, Nantes, Strasbourg, Toulouse, Tours
13 patent attorneys
Patent filing for Trivium, Fondation B-COM, Bioret, REEL, Poujoulat, Essilor, Horiba, Legrand, Renault, Saupiquet, Technoalpin France, University of Bourgogne (Inserm and CNRS), universities of Sorbonne, Bordeaux and Nantes (all public knowledge).
Paris, Bordeaux, Lyon, Nantes
39 patent attorneys
Patent filing and oppositions for ArcelorMittal, L'Oreal, Thales, Total Energies, Sanofi, Schneider Electric, Somfy, Naval Group, Framatome. Patent filing for Germitec, JT International, Powidian, Wright Medical Technology (all public knowledge).
Paris, Lyon, Rennes, Lille, Grenoble, Nantes, Nice, Toulouse
91 patent attorneys
Patent filing for Alstom, Boeing, Chanel Parfums, Crime Science Technology, Ecolab, Enyx, Essilor, Hutchinson, ImCheck, Inserm and Institut Curie, Institut Pasteur, Lactips, LG Chem, LG Electronics, Mablink, Mitsubishi Electric, Mnemo Therapeutics, Oculis, Roquette, Safran, Sanofi Pasteur, Sartorius, Schneider Electric, Soletanche Freyssinet, Subsonic, Urgo (all public knowledge).
Paris, Angoulême, Bordeaux, Grenoble, Lille, Lyon, Rennes, Toulouse, Strasbourg
38 patent attorneys
Patent filing and oppositions for Danone, Guerbet, Laboratoire Français du Fractionnement et des Biotechnologies, Safran. Filing for Becton Dickinson, Biomérieux, Bouygues Bâtiment Grand Ouest, Caregen, CNRS, Électricité de France, Fujifilm, Ethypharm, Holcim, Idemia Identity & Security, Johnson & Johnson, Korea Atomic Energy Research Institute, Michelin, Mitsubishi, Mitsumi, MMI Semiconductor, Pierre Fabre, Stryker, SEB, Unilever, University of Tours, Vivo Mobile Communication, ZTE (all public knowledge).
Paris, Caen, Grenoble, Lyon, Montpellier, Rennes, Toulouse
43 patent attorneys
Patent filing and oppositions for Brandt, Idemia. Patent filing for Apollo Intelligent Connectivity, BOE Technology, Canon Kabushiki Kaisha, Chanel, the French Alternative Energies and Atomic Energy Commission (CEA), ECA Robotics, EMD Millipore, Essilor, Evertree, Faiveley Transport, FMC Kongsberg, Genoscience Pharma, Hermes Sellier, Idemia, Institut Pasteur, Institut Gustave Roussy, JT International, Laboratoires Théa, Legrand, Maat Pharma, Nestlé, Nintendo, Pfizer, Sanofi, Saint-Gobain, Suez Group, University of Bordeaux (Inserm), Ynsect (all public knowledge).
Paris, Marseille, Nantes, Toulouse, Bordeaux, Brest, Grenoble, Montpellier, Nice, Poitiers, Quimper, Rennes
This ranking depicts the most important French patent firms according to their reputation in the eight most important fields of technology in patent filing. It includes information on their most significant clients, offices and team size. Clients have been sourced from either the law firm or the EPO register. Practice strength refers to only French and European patent attorneys working on patent filing and oppositions. The selection of law firms reflects the research of the editorial staff at JUVE Patent and is based on interviews with clients, lawyers and academics worldwide. It remains a subjective view and implies no disparagement of any firm not mentioned here but which is nevertheless active in these fields. The firms are alphabetically listed. To find out more about our rankings and research criteria please click here and here.
Published 4 March 2026
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