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Christian advises clients on both contentious and non-contentious issues of trade mark and unfair competition law.
A particular focus of his practice involves coordinating complex disputes, often related to unconventional marks (e.g. for the shape and colour of goods) and questions of consumer perception across different countries. He is also responsible for the trade mark portfolios of several renowned companies and frequently acts in opposition and cancellation proceedings before the GPTO and the German Federal Patent Court as well as the EUIPO, the Boards of Appeal and the European Courts.
Christian regularly deals with IP rights in connection with Web3, Non-Fungible Tokens (NFTs), Blockchain Technology and the Metaverse. He is part of the editorial team of the TW Metaverse Newsletter.
Since 2019 | Salary Partner, Taylor Wessing |
2014 – 2019 | Associate, Taylor Wessing |
2018 | M.Sc., behavioural economics, London School of Economics and Political Science (LSE) |
2014 | LL.M. focusing on trade mark and unfair competition law, University College London (UCL) |
2013 | Admitted as a lawyer, Hamm |
2013 | Second state examination, Düsseldorf |
2012 | Doctoral degree on a topic in the field of unfair competition law, University of Cologne |
2009 | First state examination, Cologne |
BPatG zu „VR-Perfekt“ – Virtuelle Realität oder Volks- und Raiffeisenbanken?, GRUR-Prax 2023, 395 (co-author) Gedankliche Verknüpfung bei Übernahme der älteren Marke als selbstständig kennzeichnender Bestandteil eines jüngeren Gesamtzeichens, GRUR-Prax 2023, 267 Seven practical steps to future-proof brand protection in Web 3.0 | World Trademark Review 2023 Blockchain & Innovation Law #2 | European Blockchain Center (speaker) The virtual Wild West: what brand owners need to know about the metaverse | World Trademark Review Special Report Q1 2023 (co-author) Genesis Masterclass: IP & Web3 (speaker) MetaBirkin: Hermès successful in first NFT trade mark trial | MARQUES Class 46 NFTs and Brands in the Metaverse | World Law Group Webinar (speaker) Münchener Anwaltshandbuch Gewerblicher Rechtsschutz (Hrsg. Gordian N. Hasselblatt), Abschnitt: Deutsches Markenrecht, C.H. Beck, 6. Auflage 2022 (co-author) How does the metaverse impact brands? | TW Brands Forum London (speaker) Kombination rein beschreibender Wort- mit verkehrsüblichen Bildelementen, GRUR-Prax 2022, 605 (co-author) Into the metaverse: Trade mark protection in the virtual world, ZdiW 2022, 320 (co-author) EUIPO on virtual goods, NFTs and the Metaverse, MARQUES Class 46 The rise of the metaverse: what it means for brand owners, World Trademark Review Special Report (co-author) Verwechslungsgefahr zwischen unterschiedlich stilisierten Einzelbuchstabenmarken, GRUR-Prax 2022, 84 (co-author) Geometric shapes before the EUIPO: sometimes simple is simply not enough, MARQUES Class 46 Auswirkung von Farben auf Unterscheidungskraft von Warenformmarken, GRUR-Prax 2021, 597 (co-author) Präzisierte Prüfungskriterien für Funktionalität von Warenformmarken, GRUR-Prax 2019, 550 On Puzzles, Functionality and the General Court – No More Fun and Games, MARQUES Class 46 Verbraucherwahrnehmung selbstständig kennzeichnender Bildelemente, GRUR-Prax 2019, 409 Kein generelles Vertriebsverbot hochpreisiger Produkte im Discounter-Umfeld, GRUR-Prax 2019, 235 (co-author) Anything but ordinary: Where insights from behavioural economics meet the "average consumer" in EU trade mark law, MarkenR 2018, 281-288 Erschöpfungseinwand bei Selektivvertrieb, GRUR-Prax 2018, 578 (co-author) When brands get blurry: Can empirical research in the field of behavioural economics shed light on the concept of dilution by blurring?, GRUR Int. 2018, 900-907 Inversion of letters: Confusing ro nto?, MARQUES Class 46 Unterlassungsanspruch gegen Vertrieb durch nicht-autorisierte Händler, Keine Verwechslungsgefahr zwischen BEPOST und POST, GRUR-Prax 2018, 168 Adidas trademark ruling: the three-stripe saga continues, World IP Review Verwechslungsgefahr zwischen IWEAR und INWEAR, GRUR-Prax 2018, 74 GC: two's company, three's a crowd and four's still not a valid mark, MARQUES Class 46 Master: On fizzy drinks, trade marks, behavioural economics and the principle of territoriality, MARQUES Class 46 Update on the fate of laudatory signs before the General Court, MARQUES Class 46 Bundesgerichtshof: It is not over yet for the packet in the pocket, MARQUES Class 46 Saved by the (R)? General Court decides on the 'LIMBIC(R) SALES' trade mark, MARQUES Class 46 3D-Marke „Zauberwürfel“ laut Generalanwalt nicht schutzfähig, GRUR-Prax 2016, 300 CJEU: El Corte Ingles is lost in translation - or is it?, MARQUES Class 46 Germany: BMW stays ahead of competition, MARQUES Class 46 Unterscheidungskraft mehrdeutiger Begriffe mit Werbecharakter; GRUR-Prax 2015, 370 General Court: Two 'D' or not two 'D', MARQUES Class 46 Greenworld: a great ideal, but is it okay as a brand for fossil energy goods and services?, IPKat "In-Game Advertising" - Grenzen der Werbemaßnahmen in Computerspielen unter dem Gesichtspunkt des lauterkeitsrechtlichen Verbraucherschutzes, Hamburg, 2013 Die Auslegungshilfe der EU-Kommission zur UGP-Richtlinie – Mehr Orientierung oder neue Stolperfallen?, GRUR-Prax 2010, 95-97 (co-author) |
INTA Trade Mark Office Practices Committee (2022/2023 term) MARQUES Class 46 Blog |
English |
Spanish |
Actualités et publications récentes
Yuga prevails in trade mark lawsuit against Ryder Ripps’ Bored Ape NFTs
More guidance on trade marks and NFTs in the metaverse: INTA publishes white papers, UKIPO provides guidance for classification
par Dr. Christian Tenkhoff, LL.M. (UCL), M.Sc. (LSE) et Ina Kamps, M.A.
Bits and pieces from the Metaverse
Issue #20 | We keep you up to date with everything you need to know about the Metaverse.
par plusieurs auteurs
Hermès successful claim against Rothschild (MetaBirkin) in first substantive NFT dispute: is it a win for web3, too?
par plusieurs auteurs