Guillaume Klasen

Admitted to the Paris Bar since 2020, Guillaume Klasen holds two postgraduate degrees in intellectual property law and in information technology and e-commerce law.


Guillaume has worked in the intellectual property chamber of the Paris Court of Justice, in several law firms and in the intellectual property civil litigation department of a major French luxury group.


He provides legal advice and carries out litigations in all areas of intellectual property law and digital law. Guillaume assists individuals as well as companies of various sizes from all industrial sectors, at each phase of development, exploitation and defense of their rights.


Fluent in English, he works daily for foreign clients on international cases.


Guillaume is also a member of AFDIT, APRAM and AIPPI.


  • Post-graduate degree (Master 2) in Information Technology and Digital Economy Law from the University Paris I Panthéon-Sorbonne
  • Post-graduate degree (Master 2) in Intellectual Property Law from Sciences Po Paris