Ansgar Liebelt

Patent Attorney, Dipl.-Phys.

  • Graduate of the University of Freiburg (Physics)
  • 1995-2000 Researcher and academic assistant at the University of Stuttgart
  • 2003 Admission as German Patent Attorney
  • 2003-2015 Patent Attorney with a Patent Law Firm in southern Germany
  • 2014 Admission as European Patent Attorney
  • 2017 Head of isarpatent® office Fribourg

Technical Expertise:

mechanical engineering, solid state physics, aerospace engineering, measurement and control technology, automotive engineering, sensor-/actuator technology, medical engineering, material technology, computer-implemented inventions and software

Legal Expertise:

German, European and International registration and examination proceedings for patents and utility models, opposition, appeal and nullity proceedings before the German and European Patent Office, utility model cancellation proceedings, legal opinions on registrability and infringement matters, German and International design law, employee invention law


German, English, French, Spanish