Patent Attorneys PartG mbB

The ZIEBIG & HENGELHAUPT partnership company is a full service IP law firm with a history stretching back over more than 24 years. The origins of the firm go back to 1993/1994 when Klaus Gulde, Marlene Ziebig and Jürgen Hengelhaupt established a patent agency practice in Berlin previously known as Gulde Hengelhaupt Ziebig & Schneider and built up a significant portfolio of German and international clients.

ZIEBIG & HENGELHAUPT provides tailored IP services, mainly in the diverse areas of patent prosecution, so that it can offer specialized and in-depth IP service for the full spectrum of technologies. We are ready to visit clients and to provide the needed consultation to make sure that each case receives the greatest care possible.


  • Patent Prosecution
  • Patent Dispute Proceedings
  • Utility Models
  • Trademarks
  • Design Protection
Dr. Marlene K. Ziebig

Jürgen Hengelhaupt