
Casalonga utilises an integrated model, uniting attorneys-at-law with patent and trade mark specialists to deliver seamless prosecution and enforcement strategies across Europe. With offices spanning France, Germany, and Spain, the firm excels in pan-European validity disputes and portfolio optimisation, leveraging deep sectoral insights in luxury and tech. Trade marks litigator Arnaud Casalonga, adept in infringement proceedings, co-leads alongside Caroline Casalogna, a designs expert in unfair competition; Karina Dimidjian-Lecomte, focused on global strategies; Marianne Gabriel, versed in mediation; Floriane Codevelle, proficient in contracts; Laurence Schardt, heading portfolio management; and Pascaline Vincent, specialising in domain disputes. In Spain, Cristina Bercial-Chaumier manages cross-border enforcement.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- ‘Extreme availability and boundless kindness. Working in harmony.’
- ‘They always give us quick answers.’
- ‘The team's strength lies in its availability and responsiveness. The support provided is comprehensive, and the approach is always developed in collaboration with us, the client.’
- ‘Marianne Gabriel is a lawyer with great professionalism and undeniable human qualities.’
- ‘We have worked with Caroline Casalonga and Cristina Bercial in connection with trade mark opposition matters and they (and their teams) provide legal service at a high level.’
- ‘A very collaborative and readily available team that perfectly understands our specific needs.’
Key clients
- Sanofi
- Paramount Group (formerly ViacomCBS) (CBS Studios Inc., Viacom International Inc.)
- V33 Group
- MSF International (Médecins Sans Frontières International)
- Credit Mutuel Arkéa
- Heineken Entreprise
- Saint-Gobain
- Hasbro
- Sky Group (formerly British Sky Broadcasting Group Plc)
- Kodak
- Blue Cross Blue Shield Association
- Essity Hygiene and Health AB
Work highlights
Opposed and completed trade mark infringement actions for MEDECINS SANS FRONTIERES (MSF) in France, Spain and Portugal against organisations attempting to exploit MSF’s reputation, both in fundraising countries and in regions where MSF intervenes during war or epidemics.
Represented the licensee of La Compagnie de Vichy in the protection of its name, including providing advice and enforcement of its rights (oppositions, invalidity claims, fraudulent filings) against any attempts at appropriation by third parties.
Represented VIACOM International Inc. (US company) in an invalidity action before the EUIPO against a French company concerning EUTM n°18856899 ‘Pierre Cadault’ (word mark), filed on the ground of bad faith for reproducing the name of a fictional character, the fashion designer Pierre Cadault from the world-famous TV series “Emily in Paris”.
Lawyers
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.

Next Generation Partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.
Practice head
Arnaud Casalonga; Caroline Casalonga; Floriane Codevelle; Karina Dimidjian-Lecomte; Marianne Gabriel; Laurence Schardt; Pascaline Vincent; Cristina Bercial-Chaumier

