Dr. Thomas Kronberger

German Patent Attorney, European Patent Attorney, UPC Representative, European Trademark and Design Attorney

kronberger@grunecker.de     S/MIME

+49 (0) 89 21 23 50

Office: Munich

Languages: German, English


Thomas Kronberger has extensive experience in patent prosecution in physics, mechanical and electrical engineering, and computer-implemented inventions. Over the years, he has also acquired extensive expertise in representing his clients in opposition proceedings before the European Patent Office and the German Patent and Trademark Office.

He is also regularly involved in patent nullity proceedings before the Federal Patent Court and the Federal Supreme Court (BGH). Thomas has built up a strong patent litigation practice. Here, he works as a patent attorney partnering with the firm’s litigation attorneys, particularly in information and communication technology, semiconductor technology, and mechanical engineering. At the Unified Patent Court, Thomas acts both in isolated nullity actions and litigation involving nullity counterclaims.

Due to his experience, he regularly provides expert opinions. His clients particularly appreciate his competent advice on litigation and validity aspects, as well as on IP strategy and management.

Thomas is a member of FICPI and EPI.


  • Patent Law
  • Patent Infringement

Technical fields

  • Semiconductor Technology
  • Medical Technology
  • Mechanical Engineering
  • Software


  • Studies in Physics at the University of Innsbruck, Diploma in 2005
  • Doctorate in Physics, University of Innsbruck, 2008
  • European Patent Attorney, 2012
  • German Patent Attorney, 2013
  • European Trademark and Design Attorney, 2014
  • Partner at Grünecker, since 2022
  • UPC Representative, 2023


5 Considerations In Preparing For EU’s New Patent System
Law360, 2022

Awards & Rankings

Excellent; Best Law Firms of Patent Litigation – Germany, Leaders League, 2023

Rising star – Germany, IP Stars, 2023

Core Attorney – Prosecution and official Proceedings (Tier 1); Litigation (Tier 2)
“Moritz Höffe and Thomas Kronberger have sound judgment, a deep understanding of the technical facts and the ability to communicate difficult concepts clearly.”, Legal500, 2023

“In contrast to another law firm, Grünecker was able to provide us with a very competent and motivated patent attorney, Mr. Thomas Kronberger. Mr. Kronberger was able to understand our invention ad hoc and actively helped us to prepare a patent application.”, Legal500, 2023

Leading Patent Attorney in his field, Handelsblatt and Best Lawyers, 2024 edition