Dienwiebel, Thomas

Thomas S.

German Patent Attorney, U.S. Patent Agent

Thomas Dienwiebel focuses his practice on patent prosecution and contested proceedings. He is a member of our European practice team.

Thomas has significant experience in prosecuting patents before the United States Patent and Trademark Office, as well as the European Patent Office. He is one of a few “dual qualified” practitioners, admitted to practice in patent matters before both the USPTO and the EPO. Thomas is also admitted as a patent attorney in Germany and thus represents clients before the German Patent and Trademark Office as well as the German Federal Patent Court. His qualifications allow him to provide his clients with detailed guidance for transatlantic patent portfolios such as with respect to filing and drafting strategy.

Thomas’ technical background is in the field of electrical engineering with a focus on electronics, mobility, telecommunications, software, optics, and medical devices. His experience also comprises European trademark, licensing, and domain arbitration matters.

Thomas also represents clients in opposition and invalidity procedures before the European Patent Office, the German Federal Patent Court, and the German Supreme Court. He frequently argues cases at the EPO. Thomas also has significant experience in patent litigation in Germany. He is admitted to practice before Europe’s new Unified Patent Court.

Industry Experience

Thomas graduated in Electrical Engineering at the TU Dortmund University in 2002 after having worked as a photonics engineer at Tsunami Optics, Inc., Mountain View, California. He started his training in the field of intellectual property law at a patent law firm in Witten, Germany in 2003. After having finished his training, Thomas became admitted as a patent attorney in Germany in 2007. Later, he worked as a partner at a patent law firm Germany.


  • FICPI (Fédération Internationale des Conseils en Propriété Industrielle)
  • epi (Institute of Representatives before the EPO)
  • Patentanwaltskammer (German Patent Attorneys Bar)
  • AIPLA (American Intellectual Property Law Association)


  • Law Degree for Patent Attorneys, FernUniversitaet Hagen, Germany
  • Dipl.-lng., Electrical Engineering, TU Dortmund University, Germany


  • German Patent & Trademark Office (DPMA)
  • German Federal Patent Court (BPatG)
  • German Supreme Court (BGH; for patent invalidity appeal procedures)
  • European Patent Office (EPO)
  • European Union Intellectual Property Office (EUIPO)
  • Unified Patent Court (UPC)
  • United States Patent & Trademark Office (USPTO)


  • European Patent Office Practice
  • Unified Patent Court Practice
  • German Patent & Trademark Office Practice
  • European Trademark & Design Practice
  • United States Patent & Trademark Office Practice

Technologies & Industries

  • Electronics
  • Mobility and Autonomous Vehicles
  • Semiconductor and Integrated Circuits
  • Software
  • Optics
  • Telecommunications
  • Aviation
  • Medical Devices