Janna Thomsen

Janna Thomsen
Janna Thomsen
very structured in large projects
JUVE Handbook 2023/24

Janna Thomsen advises on all aspects of intellectual property law, in particular trade mark law and unfair competition law, as well as antitrust law (exclusionary conduct).

She specialises in strategic advice and the litigation of complex proceedings before the German and European courts.

She also advises national and international companies on the management and development of their trade mark portfolios and has many years of experience in conducting registration and opposition proceedings.

Janna specialises in product imitations - lookalikes - in the food and consumer goods industry.

Short Biography
German, English
Professional Career

Since 2017: Lawyer at HARTE-BAVENDAMM (Partner since2024)


2017: Second state examination, Hamburg (during the legal clerkship station abroad in Washington D.C.)

2014: First state examination, Schleswig

2011 – 2014: Member of the Chair of Copyright Law, IPR and IZVR of Prof Dr Haimo Schack

2009 – 2014: Law studies, CAU Kiel



  • Note on BGH Kerrygold, Alles in Butter - Unlautere Herkunftstäuschung trotz abweichender Produkt- und Herstellerkennzeichnung?, ZLR 4/2023, 522
  • Comment on EGC, Lack of distinctive character of the word mark "Fucking Awesome" for clothing goods, GRUR-Prax 2023, 295
  • Note on Munich Regional Court I, Unfair imitation of chocolate bars known abroad, GRUR-Prax 2021, 504
  • Comment on OLG Nuremberg, Use of a word/figurative mark as a trade mark by affixing it to a production facility, GRUR-Prax 2021, 254
find out more

IP Stars from Managing IP

  • Rising Star 2021 
  • Rising Star 2022
  • Rising Star 2023
find out more