Norbert Hansen

Partner at Maiwald Patentanwalts- und Rechtsanwalts-GmbH

Norbert Hansen advises and represents major multinational clients on matters relating to national and international patent protection. His professional activities include securing, maintaining, enforcing and challenging patents and utility models, IP portfolio management and employee invention law. A large part of his work is concerned with opposition and appeal proceedings before the European Patent Office.

His specialist fields are chemistry, chemical engineering, material sciences and semi-conductors.

Mr Hansen is co-author of several scientific publications in the field of homogeneous and heterogeneous catalysis and solid-state chemistry. He is also a lecturer in IP law at the Faculty for Chemistry and Pharmaceutics of the Ludwig Maximilian University of Munich and a member of the International Association for the Protection of Intellectual Property, the International Federation of Intellectual Property Attorneys, the Licensing Executives Society, the American Intellectual Property Law Association and the German Chemical Society.

Important cases

  • Representation of patentees before the EPO’s Enlarged Board of Appeal in the G1/16 case, where the board handed down a landmark decision on the allowability of disclaimers in patent claims

Practice areas

  • Organic chemistry and polymers
  • Inorganic and construction materials
  • Food and agriculture
  • Displays and light
  • Patents and utility models
  • Employee invention law
  • IP consulting


  • Patent prosecution and portfolio management
  • Filing strategies and drafting patent applications
  • Freedom-to-operate and validity analyses
  • Opposition and appeal proceedings
  • Nullity and patent litigation proceedings

Professional associations


Firm details

Maiwald Patentanwalts- und Rechtsanwalts-GmbH
Elisenstrasse 3
Munich 80335

Contact details

See firm profile