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Jean-Baptiste Lecœur

Partner / Paris

Attorney-at-law (Paris Bar)

European Patent Attorney

Patent litigator

Personal assistant : Catherine Liot


  • - Diploma on Patent litigation in Europe (Strasbourg University) - 2014
  • - Master’s degree in law (Paris University) – 2003
  • - Post-graduate degree in Industrial Property law at CEIPI (Strasbourg University) - 2001
  • - Chemical Engineer from Ecole Nationale Supérieure de Chimie de Paris (Chimie Paris Tech) - 2000

Practice description

Jean-Baptiste began his practice in 2001 in a large IP law firm in Paris. He joined CASALONGA & ASSOCIÉS in 2008 and became a partner in 2012.

Jean-Baptiste is in charge of patent prosecution, and has acquired an extensive experience in opposition and appeal proceedings before the EPO. He is also involved in legal opinions (validity of patents, freedom to operate, license agreements) and patent litigation cases.

Jean-Baptiste handles cases in different fields of chemistry such as organic and inorganic chemistry, cosmetics, polymers, material science, pharmaceuticals, chemical engineering.

Adjunct teaching / Professional organisations

Jean-Baptiste Lecoeur is acting as a tutor at the International section of the CEIPI for the preparation of the European Qualifying Examination (EQE) for European patent attorneys (legal paper) since 2008. He also acts as a tutor at the Epi/CEIPI basic training course in Paris.

Jean-Baptiste is member of the European Patent Institute (epi) and the International Association for the Protection of Industrial Property (AIPPI).


French, English, German