Stéphane Masi

French & European Patent Attorney

Lorient office
+33 (0)1 49 64 60 00

Stéphane Masi has worked in IP in both industry and private practice since 2007. First based in Paris, he moved to Brittany in 2011 to work as a patent engineer before joining Novagraaf France in 2021.


Stéphane holds a PhD in chemistry from the University of Paris (Chimie ParisTech) as well as a Diplôme d'études approfondies (DEA) in bioorganic chemistry. He completed his CEIPI (patents) at the University of Strasbourg in 2008. He has been a European Patent Attorney since 2017 and an Industrial Property Attorney in France since 2020.


Stéphane is member of EPI and CNCPI.


  • Frans
  • Engels
  • Spaans


  • Freedom to operate, patentability, infringement and patent validity reports and opinions
  • Patent drafting (French and English)
  • Patent prosecution for French, European, international (PCT) and foreign patent applications
  • Patent portfolio strategy and optimisation
  • Management of examination, grant, opposition and appeal procedures before the European Patent Office (EPO)
  • Litigation and pre-litigation strategy and management
  • Invention protection
  • Validity studies of third party patents


  • Automobielindustrie & luchtvaart
  • Chemie
  • Bouw
  • Energie
  • Levensmiddelen & levensmiddelentechnologie
  • Greentech/Cleantech
  • Huishoudelijke apparatuur
  • Licenties
  • Levenswetenschappen & bio(medische) technologie
  • Werktuigbouwkunde
  • Nanotechnologie
  • olie & gas

Voor meer informatie neem gerust contact met ons op.