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Arnaud Casalonga

Associé / Paris et Munich

Avocat au Barreau de Paris

Mandataire agréé auprès de l’EUIPO

Représentant devant la JUB

arnaud.casalonga@casalonga.com


Assistante : Bernadette d’Ambrosi

b.homovic@casalonga.com



Arnaud Casalonga has more than 40 years of experience in French and European Intellectual Property Law. His practice concentrates primarily on complex and cross-border intellectual property disputes with a particular focus on patent, trademark and design infringement cases.

He has been a member of the Paris Bar since 1981 and has worked in various areas of law, particularly criminal law, before gradually specializing in intellectual property and becoming a partner in a famous French business law firm where he managed and developed the IP and litigation department from 1987 to 2005.

He assists patent attorneys and clients directly in complex legal proceedings in France and abroad and is known as one of the best specialists in patent and trademark law.

In parallel, he also has a very strong reputation in the area of competition law and the selective distribution of luxury products with highly specialized expertise in the development and protection of brands and distribution networks of famous brands in the perfume and haute couture in France and abroad.

In 2006, he joined CASALONGA with his team.

With a double specialization in "intellectual property law" and "commercial, business and competition law", he assists French and foreign clients in the protection and defense of their rights, in particular before the courts, where he regularly pleads.

Arnaud Casalonga has worked on the most recent drugs cases including supplementary protection certificate (SPC). His expertise extends to patent litigation in various fields of in the pharmaceutical, chemical, mechanical, electronic and aeronautical industries. He handles copyright and unfair competition cases in different sectors such as fashion, “art de la table”, luxury goods, design, media, TV networks, press, games and toys sectors, textiles, watchmaking and in a wide variety of consumer products.

His activity includes international trade mark disputes.

He also provides strategic counseling to both French and international companies in all aspect of intellectual property law, including audits, licensing and contractual matters.

Arnaud Casalonga is recognized as one of the French leaders in Intellectual Property domain and is quoted by The Legal 500, Les Décideurs and IP Stars.

He regularly participates as speaker in national and international conferences.

Adjunct teaching / Professional organizations

Arnaud Casalonga was a lecturer in Industrial Property Law at the University of Paris V.

He is a member of numerous professional organizations such as the International Association for the Protection of Intellectual Property (AIPPI), the French Association of Trade Mark and Design Law Practitioners (APRAM), the French Association of Intellectual Property Lawyers (AAPI), the European Patent Lawyers Association (EPLAW) and the International Trademark Association (INTA).

Latest publications

  • - Novembre 2017 : "Prescription of the patent nullity action, a contested reform" – published in the Industrial Property Review. For more information, see under this link
  • - Co-author of "Distribution of Luxury Goods" (LGDJ)
  • - Author of numerous articles on counterfeiting in the legal and economic press

Latest interventions

  • - Décember 2021 : Taking part in a round table discussion on intellectual property, as part of the information mission on "French and European policy towards China" of the Foreign Affairs Committee of the National Assembly, with Kristell Erout and Vincent Remy, partners of the LLR law firm, and François-Xavier de Beaufort, Director of Economic Action at the French National Institute for Industrial Property (INPI)

Education

  • - Paris Bar examination – 1981
  • - Master in law, Industrial Property Law, University of Paris II – 1980
  • - Master in Law, University of Paris II – 1978

Languages

French, English, German

Latest awards

  • - Best Lawyers : best lawyer in France in 2025.