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Andreas Thielmann

Patent Attorney | European Patent Attorney
UPC Representative

Partner since 1993

Bleichstrasse 14
D-40211 Duesseldorf

Phone +49 211 90490-0
Fax +49 211 90490-49


Detailed profile

As a patent attorney and partner at COHAUSZ & FLORACK, Andreas Thielmann advises German and international companies, in particular in the areas of general mechanical engineering and mining technology. He frequently deals with issues in the fields of packaging technology, ceramic and refractory materials and environmental and process engineering. He advises clients in all areas of intellectual property, in particular on technical property rights, designs and trademarks. With his many years of experience and expertise, Andreas Thielmann also supports the training of young patent attorneys in the firm. In addition, he is involved in various international IP organizations and is an honorary judge in the Senate for Patent Attorney Matters at the Federal Supreme Court (BGH) in Karlsruhe.

After studying mining at RWTH Aachen University and working at Bergbau-Forschung GmbH (now DMT), Andreas Thielmann embarked on a career as a patent attorney. He has been a partner at COHAUSZ & FLORACK since 1993. He advises clients in German and English.



  • Best Lawyers 2024
  • IAM Patent 1000 2023
    “With a background in mining technology and metallurgy, Andreas Thielmann is a strong choice for many companies seeking patents in the mechanical engineering space. His technical expertise and mastery of patent law have earned him a seat as an honorary judge in the Senate for Patent Attorney Matters at the Federal Supreme Court (BGH) in Karlsruhe.”
  • Leaders League 2023
    (...) highly recommended for patent prosecution (…)
  • IAM Patent 1000 2022
    "Among German Patent Attorneys, Andreas Thielmann is a foremost expert in mechanical engineering. He supports clients in many meaningful ways, leveraging broad-ranging patent, trademarks and designs knowledge and extensive professional experience."
  • Best Lawyers 2023
  • Legal 500 EMEA 2022
  • Legal 500 Deutschland 2022
  • IAM Patent 1000 2021
    “Having regularly attended international conferences over the past 25 years, he relies on many personal business acquaintances in his worldwide IP network."
  • Leaders League 2021
    Excellent in patent prosecution
  • Best Lawyers 2022
  • Wirtschaftswoche Ranking Patentanwälte 2020
  • IAM Patent 1000 2020
    "Andreas Thielmann is at the pinnacle of the attorney profession in Germany when it comes to mechanical engineering. Committed to the highest standards of quality, he plays a vital role for his clients as an advisor and to colleagues in his firm as a mentor."
  • IAM Global Leaders 2020
  • Best Lawyers 2020
  • IAM Patent 1000, 2019
    "(...) boasts vast experience in patents, gained working in industry, private practice and the German PTO in Munich; his mechanical engineering nous is much admired within the field."
  • Best Lawyers 2020
  • IAM Patent 1000, 2018
    “(...) extremely experienced professional who plays a significant role in IP committees and is hands-on with his clients (...)”
  • IAM Patent 1000, 2017
    “(...) is a really experienced professional who is fully committed to clients and notably active for international IP organisations, (...)”