BDPE Patent Attorneys and Attorneys at Law

Ottostraße 4
D-80333 München

Fon +49 (0)89 – 21 53 819-0
Fax +49 (0)89 – 21 53 819-19


BDPE Patent Attorneys and Attorneys at Law

Platz der Ideen 2
D-40476 Düsseldorf

Fon +49 (0)211 – 30 27 66-0
Fax +49 (0)211 – 30 27 66-10

Dr. Karl-Ulrich Braun-Dullaeus

Partner | Patent Attorney | Munich

Patent Prosecution

„Karl-Ulrich Braun-Dullaeus is an outstanding patent professional who is highly knowledgeable and deeply experienced in prosecution and litigation, which means his clients profit from his expertise in both areas. Irrespective of how big the client is, Karl takes care of each matter in a very efficient and customer-friendly manner, ensuring that things move forward fast. He is quick to understand the needs of his clientele and advises them in a very down-to-earth, reliable and comprehensive way.“

– IAM Patent 1000 Guide 2024

„Karl-Ulrich Braun-Dullaeus can also explain very complex technological relationships in a generally understandable way. In my experience, he has often been able to develop the decisive argument, especially when working together in large Joint Defence Groups“

– The Legal 500 – Deutschland 2024

„He focuses on understanding business and provides constructive suggestions in difficult situations.“

– IAM 1000 Guide 2022

„With the joint forces of their respective teams, Fritz and Karl-Ulrich are able to accommodate not only the needs of demanding clients but also handle numerous large litigations in parallel.“

– IAM 1000 Guide 2022

„Mr. mobile communications. Renders even the most complex technical matters understandable”, competitor.“

– Juve Patent Germany 2022

„Renders even the most complex technical matters understandable.“

– Juve Patent Germany 2021

Dr. Karl-Ulrich Braun-Dullaeus | Partner | Patentanwalt | BDPE München

With over 25 years of experience in intellectual property law and a strong focus on contentious proceedings, Dr. Karl-Ulrich Braun-Dullaeus (Uli) is one of the most experienced patent attorneys in the field of electronics, especially in the field of telecommunications. He has successfully represented a large number of clients in numerous proceedings, such as IPCom./. Deutsche Telekom, Nokia./. HTC, Unwired Planet./. HTC, Intellectual Ventures/Telekom, „Connected Cars“ – Verfahren (for Continental).

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Uli started his own business with colleagues in 2002. Since 2019, he has been an equity partner in the law firm Braun-Dullaeus Pannen Emmerling (BDPE) in Düsseldorf.

After his patent attorney training, he obtained the German and European qualifications and has been a patent attorney since 1998.

He has successfully been representing and defending large corporations in patent litigation involving allegations of infringement in the field of telecommunications, as well as in extensive attacks on the validity of asserted patents. As a result, he earned the name “Mr. Mobile Communications” in this field. According to competitors, he “makes even the most complicated technical issues understandable.”

Uli is authorized to represent clients at the German Patent and Trademark Office (DPMA), the German Federal Patent Court (BPatG), the European Patent Office (EPO), the European Union Intellectual Property Office (EUIPO) and the World Intellectual Property Organization (WIPO). His work also includes drafting patent applications and conducting grant proceedings.

He studied physics at the University of Heidelberg, and obtained his doctorate at the Max Planck Institute for Nuclear Physics. Until 1994 he worked as a physicist in applied nuclear physics, semiconductor and solid state physics, physical oceanography and medical physics.

Fon +49(0) 211 – 302766-0


  • German Patent Attorney
  • European Patent Attorney
  • European Trademark and Design Attorney
  • University of Heidelberg
  • Max Planck Institute for Nuclear Physics

Authorized to represent

  • Germany:
    • Federal Court of Justice (only patent nullity proceedings)
    • Federal Patent Court (BPATG)
    • German Patent and Trade Mark Office (DPMA)
  • Europe:
    • Unified Patent Court (UPC)
    • European Patent Office (EPO)
    • European Union Intellectual Property Office (EUIPO)
  • International:
    • World Intellectual Property Organization (WIPO)

Technical fields

Telecommunications/ Mobile Communications


Electrical and information technology

Automotive manufacturers and suppliers

Food Technology

Medical Technology