Dr. Karl-Ulrich Braun-Dullaeus

Platz der Ideen 2
D-40476 Düsseldorf

Fon +49(0) 211 – 302766-0
Fax +49(0) 211 – 302766-10

Dr. Karl-Ulrich Braun-Dullaeus
Dr. rer. nat., Dipl.-Phys. (Univ.)
German Patent Attorney, European Patent Attorney, European Trademark and Design Attorney

Technical areas of expertise:

  • Automotive engineering
  • Electrical engineering
  • IT- and telecommunication
  • Mechanical engineering
  • Medical engineering

Legal activities:

  • 20 years of extensive experience in patent litigation. 
  • Successful assistance of large telecommunications companies in defending them against infringement allegations. 
  • Extensive attacks on the legal validity of patents asserted in patent litigation.
  • Drafting, filing and supervising IP applications up to granting.
  • Representation of clients before the German Patent Office (DPMA), the German Federal Patent Court (BPatG), the European Patent Office (EPO), the Office for Harmonization in the Internal Market (OHIM) and the World Intellectual Property Organization (WIPO).


  • Dr. Karl-Ulrich Braun-Dullaeus has been equity partner at Braun-Dullaeus Pannen Emmerling (BDPE), Dusseldorf, since 2019. 
  • He started his own business with colleagues in 2002.
  • After his training in intellectual property law, he was admitted to practice both as a German and European patent attorney. He has been a patent attorney since 1998.
  • He worked as a physicist in applied nuclear physics, semiconductor and solid-state physics, physical oceanography and medical physics until 1994. 
  • He studied physics at Heidelberg University and obtained a doctorate at the Max Planck Institute for Nuclear Physics. 

Publications (excerpt):


  • epi – European Patent Institute
  • FICPI – International Federation of Intellectual Property Attorneys 
  • German Chamber of Patent Attorneys


German, English

Education (excerpt):

Heidelberg University
Max Planck Institute for Nuclear Physics