Tanguy de Haan

Portrait of Tanguy
Tanguy de Haan is an IP litigator. His practice focuses on patent, trade mark and design litigation, in particular cross-border disputes and pan-European claims. Tanguy has extensive experience before the General Court and the Court of Justice of the European Union as well as the Belgian courts.
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  • Work highlights
    • Citroën in pan-European injunction proceedings against the use of Polestar’s double chevron logo;
    • Glaxo Group in defending its EU trade mark registration for a three-dimensional purple inhaler before the EU General Court of Justice and the CJEU;
    • Guerlain's registration of its iconic 3D shape mark for lipstick;
    • Hypertherm in design proceedings before the General Court of the EU about the protection of consumables and potentially captive markets by designs;
    • Levi Strauss & Co. on the enforcement of its rights on the "Arcuate" trade mark in the EU;
    • Louis Vuitton in trade mark infringement and claim back proceedings before the Brussels Business Court and the Benelux Office for IP in relation to the second largest diamond of the world; and
    • Reckitt Benckiser in the defence of one of its key trade marks, disparaged in comparative advertising by Lidl.
  • What others say
    • Tanguy was named Belgium Practitioner of the Year at the 2022 Managing IP Awards.
    • The Legal 500 2023: ‘Tanguy de Haan is very smart and responsive. He is an excellent IP litigator and strategist. Moreover, he also has a very good sense of humour and is a pleasure to work with.’
    • World Trademark Review 2023: 'Tanguy is a walking encyclopaedia of trademark law, and his advocacy is always thoughtful, strategic and compelling. He is not a passive advocate; instead, he responds tactfully to arguments he does not wish to make, or he reframes them to serve his purpose. He is a true gentleman and a shining star in Europe.'
    • Included in IAM Global Leaders 2024 list (patents)
    • IAM Patent 1000 2023: 'an IP all-rounder with an instinct for the best arguments.'
    • Chambers Europe 2022: 'A market source reports that he is "enthusiastic and leaves no stone unturned to get the result the client desires.'
    • Managing Intellectual Property IP Stars - Trade mark star 2023
  • Ancillary functions

    Tanguy is a Board Member of the Benelux Trademarks and Designs Association (BMM), member of the Benelux Council for Intellectual Property, co-chair of the editorial committee of the French IP association APRAM, and a member of European Patent Lawyers (EPLAW) and the European Amicus Curiae committee of the International Trademark Association (INTA). He publishes and lectures frequently on IP-related topics and strategies.

  • Qualifications

    Tanguy received his law degree magna cum laude from the Université catholique de Louvain (UCL) in 2000. He is admitted to the Brussels bar and joined NautaDutilh in 2000. In 2013, Tanguy participated in the Harvard Business School’s IP Strategy Programme.

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