Felix Tann
Info
Felix Tann advises clients across all areas of intellectual property law, with a particular focus on trade mark, unfair competition and design law. Further areas of focus include sustainability-related advertising and product compliance (green claims) as well as the IP and unfair competition law issues raised by new technologies such as artificial intelligence, Web3 and blockchain applications.
Details
Felix Tann advises international companies on product launches, marketing and advertising campaigns and on the prosecution, defence and enforcement of their IP rights. He represents clients both in out-of-court advisory matters and in litigation and also advises on sustainability- and technology-related compliance questions.
Felix Tann studied law at Bucerius Law School in Hamburg and spent a semester abroad at the Centre for Transnational Legal Studies in London. His legal clerkship (Referendariat) at the Higher Regional Court of Celle included stations with Hogan Lovells (patent law) and Freshfields Bruckhaus Deringer (IP/tech litigation). Alongside his work as an attorney, Felix Tann has served since December 2020 as a research associate and project coordinator for “Emerging Technologies” at the Center for Transnational IP, Media and Technology Law and Policy at Bucerius Law School. His doctoral dissertation, supervised by Prof. Dr. Dana Beldiman, examines the protection of artificial neural networks under IP and unfair competition law.
His advisory and research focus is reflected in his publishing, speaking and teaching activities. Felix Tann is editor of the Rechtshandbuch nachhaltigkeitsbezogene Werbung (C.H. Beck, 2026), the Rechtshandbuch Web3 (C.H. Beck, 2026) and The Law of Sustainability Claims (Edward Elgar, 2027), and publishes regularly in leading legal journals such as NJW, WRP, GRUR and GRUR-Prax on green claims, trade mark law and emerging technologies. As a lecturer at Bucerius Law School, he has taught courses including “Artificial Intelligence and the Law”, “Emerging Technologies” and “Sustainability and IP Law”. Together with Dr. Florian Stoll and Lars-Eric Appel, he co-leads the Beck Akademie seminar “Green Claims – Understanding and Safely Implementing the New Rules for Sustainability-Related Advertising”. He will deepen these focus areas from autumn 2026 through an LL.M. at the University of Michigan (Intellectual Property, Technology Law and Innovation) before returning to KNPZ. Felix Tann has been with KNPZ as an attorney since March 2026.
Languages
German
English
Publications/News
Editor, The Law of Sustainability Claims: Regulation, Compliance and Litigation, Edward Elgar, forthcoming: Winter 2027
Editor, Rechtshandbuch nachhaltigkeitsbezogene Werbung, C.H. Beck, forthcoming: Herbst 2026
Editor, Rechtshandbuch Web3, C.H. Beck, forthcoming: Sommer 2026
„Probleme der Regulierung von Nachhaltigkeitswerbung – Zwischen Greenwashing und Greenhushing“, NJW, forthcoming: August 2026
„Weniger ist unlauter? Shrinkflation im Lichte des Milka-Urteils und die Fortentwicklung der Rechtsprechungslinie“, GRUR-Prax, forthcoming: Juli 2026
Article on trade mark protection in light of the General Court's decision in Les Éditions AlbertRené/EUIPO – Lubiński (Obelix, T-24/25), WRP, forthcoming: Juli 2026
Case note on LG Hamburg, Urt. v. 05.02.2026 – 312 O 369/24, GRUR-Prax 2026, issue 11
Case note on LG Ulm, Urt. v. 22.04.2026 – 10 O 45/25 KfH („100 % PFOA-frei“), GRUR-Prax, forthcoming: Juli 2026
Beck Akademie seminar „Green Claims – Die neuen Regeln für nachhaltigkeitsbezogene Werbung verstehen und sicher umsetzen“, together with Dr. Florian Stoll and Lars-Eric Appel, 09.07.2026 and 17.09.2026
„UWG und EmpCo-Update – Die beschlossenen Änderungen zu Green Claims, Nachhaltigkeitssiegel & Co“, GRUR-Prax 2026, 191
„Green Claims‚ CO2-neutral' und ‚nachhaltig & regional' nur mit klarer Erläuterung“, case note, GRUR-Prax 2026, 289
„Prioritäres Recht muss bis zur EUIPO-Entscheidung fortbestehen“, case note, GRUR-Prax 2026, 122
„Claim ‚CO₂neutrales Produkt' irreführend, wenn Kompensation nicht bis 2050 gesichert“, case note, GRUR-Prax 2026, 103
„Virtuelle Waren und Dienstleistungen im Markenrecht – Anmeldung, Durchsetzung und Erhaltung von Marken für ‚virtual goods and services'“, GRUR-Prax 2025, 45
„Übertragung der Verbraucherwahrnehmung auf virtuelle Waren“, case note, GRUR-Prax 2025, 60
„Intellectual Property Rights in the Context of Open Hardware”, in: OPEN_NEXT Handbook, 2024
„Between Obstacle and Necessity – Using Intellectual Property Rights in a Fab City Context”, in: How Fab Cities Enable a Circular Economy, Springer, 2024
„§ 14 Markenrecht und Designrecht“, in: Steege/Chibanguza (Hrsg.), Rechtshandbuch Metaverse, Nomos, 2023
„Markenrechtlicher Schutz im Metaverse“, GRUR 2022, 1644