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.

Career history

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.


  • French
  • English
  • Spanish

Areas of expertise

  • 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

Industry specialisms

  • Automotives & aviation
  • Chemistry
  • Construction
  • Energy
  • Food & food technology
  • Greentech/Cleantech
  • Home appliances
  • Licensing
  • Life Sciences & biotech (pharma, medical devices, biosensors)
  • Mechanics (incl. material processing)
  • Nanotechnologies
  • Oil & gas


Cookie policy

To provide the best possible experience for website visitors, Novagraaf uses cookies. By clicking "Accept" or continuing using the site, you agree to our privacy policy, including our cookie policy.