Olivier Delprat

Personal assistant : Agnès Ellapin

a.ellapin at

Partner / Paris and Munich

French Patent Attorney

European Patent Attorney

o.delprat at


  • - Diploma on “Patent litigation in Europe” (Strasbourg University) - 2013
  • - Post-graduate degree in Industrial Property law at CEIPI (Strasbourg University) - 1992
  • - Master of electronics and electrotechnical engineering (Paris University) - 1991

Practice description

Olivier Delprat has practiced Industrial Property Law since 1994. After several years of experience in a large law firm, he joined CASALONGA & ASSOCIÉS in 2001 of which he became a partner in 2006.

Olivier is in charge of procedures for granting patents in France, in Europe and other countries as well as opposition proceedings at the European Patent Office (EPO).

His activities cover various fields of mechanics, electronics and electrical engineering including: automobile mechanics; digital signal processing; power electronics; mobile phone; medical device, such as medical imaging systems and processes.

His long experience allowed him to acquire a recognized expertise in court litigation. He collaborates closely with CASALONGA AVOCATS in many patent litigations both in the French courts and abroad, in various fields of mechanics and electronics. He frequently organizes infringement-seizure operations to obtain evidence of patent infringement.

Olivier’s activities also cover the areas of contracts, IP right valuation, audit of patent portfolios and due diligence.

Adjunct teaching / Professional organisations

Olivier Delprat is Member of the examination board for the French qualifying examination.

He is member of the French Patent and Trademark association (CNCPI “Compagnie Nationale des Conseils en Propriété Industrielle”), the European Patent Institute (epi), and the Asian Patent Attorneys Association (APAA).


French, English, German