European Patent & Trademark Attorneys

With offices in three major European locations, Paris, Munich, Alicante, we provide a fully integrated IP service to our clients, ranging from major multinationals to small and medium companies and individuals. We have over 100 European and French patent and trademark attorneys, attorneys at law and staff, all at your service for protecting your IP rights.

CASALONGA & JOSSE was founded in 1867 by Dominique Antoine Casalonga and is considered one of the premier French patent and trademark attorneys representing before the French Patent and Trademark Office (INPI).

The French and European patent and trademark attorneys of CASALONGA & JOSSE are specialists of IP law, they offer technical and legal counselling in all areas of intellectual property law (Prosecution, registration, opposition, litigation, mediation...).

The close collaboration with the IP lawyers of CASALONGA AVOCATS enables to offer clients highly experienced and effective litigation teams, linking technical knowledge of the case with excellent legal skills.

CASALONGA & PARTNERS represents clients directly before the European Patent and Trademark Office (EPO) and the German Patent and Trademark Office (DPMA).

The German and European patent Attorneys of CASALONGA & PARTNERS are specialists of the European Patent System and the German IP Law. They assist clients in all prosecution, opposition and legal advising.