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Claus Barrett Christiansen

Photo of Claus Barrett Christiansen

Claus Barrett Christiansen specialises in intellectual property and marketing law

An expert at intellectual property rights, marketing law, licences, brand protection and IP strategy and with more than 20 years' experience, Claus Barrett Christiansen's legal advisory services cover all aspects of these areas. Claus has conducted a vast amount of cases before the Danish High Courts, the Supreme Court and the Court of Justice of the European Union, and he advises small entrepreneurial enterprises as well as multi-national corporations on formation, protection of trademark rights, domain names, design, etc.

In 2011 Claus contributed to establishing Bech-Bruun's Chinese Desk, and since then he has assisted Danish enterprises in getting a foothold on the Chinese market and rendered advice on Chinese intellectual property law, enforcement, licences and e-trade. He also advises Chinese enterprises on intellectual property law in the Nordic countries.

Claus is a popular lecturer within his area of expertise, and for more than 15 years he has been an associate professor with Aarhus University and Aarhus BSS. Further, Claus is a member of the IP committee of the Association of Danish Law Firms, the Danish Patent and Trademark Office's Expert Group on trademarks, Marques' China Team and INTA Amicus Brief Committee. 


The Team

Trademarks & Design

  • Trademarks & Design
  • Intellectual Property
  • Marketing and Advertising
  • Media & Entertainment
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  • Member, International Trademark Association (INTA
  • Member, British Literary and Copyright Association (BLACA)
  • Member, Licensing Executives Society Scandinavia (LES Scandinavia)
  • Member, Confederation of Danish Industry's Committee of E-business
  • Member, Confederation of Danish Industry Ambassadorial Corps for Optimization (ambassadørkorps for effektivisering)
  • Member, Danish Patent and Trademark Office, group of experts in trademarks
  • Member, EU Commission EU China IP Working Group
  • Member, Danish Chinese Business Forum
  • Member, INTA (International Amicus Brief Committee)
  • Member, the Danish Supreme Court Bar Association
  • Member, Maritime and Commercial High Court's user group
  • Member, Danish Society for Copyright
  • Member, Danish Association for the protection of Industrial Rights
  • Member, Association of European Trade Mark Owners (MARQUES)
  • Member, International Association for the Protection of Intellectual Property (AIPPI)
  • Board member, Ejendomsaktieselskabet Vest
  • Board member, Kavi Invest A/S
  • Member, The Association of Danish Law Firms' IPR Committee
  • Board member, Margot and Thorvald Dreyers Foundation


  • Enforcement of Intellectual Property Rights in the EU Member States, Intersentia Publishers, 2019. Book
  • Community Design Regulation, C.H. Beck, 2015. 1018 pages. Book
  • Community Trade Mark Regulation , C.H. Beck, 2015. 1600 pages. Book
  • Sanktioner og håndhævelse, Gads forlag, 2015. 608 pages. Book
  • Commented Trademark Regulation, C.H. Beck, 2015. Book
  • Commented Design Regulation, C.H. Beck, 2015. Book
  • International Design Protection, Globe Law and Business, 2012. 418 pages. Book

Education and language

  • Right of audience, The Danish Supreme Court
  • LLM
  • Admission to practice law
  • Master of Laws
  • English


Client Choice - International Law Office

Claus Barrett Christiansen has been elected to be International Winner in Client Choice of the year – Recognized for Excellence in Client Services.

Source: International Law Office (ILO)

Legal 500 Logo

Bech-Bruun runs the gamut of IP matters with 'an in-depth knowledge of the life sciences sector'. IP litigator Claus Barrett Christiansen jointly leads the team and assisted a number of well-known clothing company with investigations into the sale and distribution of counterfeit goods.

Legal 500, Intellectual property

Legal 500 Logo

Bech-Bruun is recognised for its 'in-depth knowledge of the law', 'ability to understand the market' and 'focus on the job and the real objectives'. (...). and IP expert Claus Barrett Christiansen acted for Formula 1 driver Kevin Magnussen in a contractual dispute with his former manager.

Legal 500, Media and entertainment

Assisting both start-ups and established companies, IP powerhouse Bech-Bruun goes the extra mile with its all-encompassing trademark protection. Uniquely positioned on the market, the firm has a desk in Shanghai, which is a boon to clients in Asia that require guidance on their Danish operations and vice-versa. Commander of the unit Claus Barrett Christiansen is “a solution-oriented professional with a fantastic business sense”. “He is a skilled adviser and always places himself in his clients’ shoes and adjusts his communication accordingly.” The hard-hitting litigator has myriad experience before European and domestic courts and deftly handles over 30,000 trademarks for an extensive list of high-flying clients, some of which include ECCO and Philip Morris.

World Trademark Review, 2019