Claus Barrett Christiansen

Photo of Claus Barrett Christiansen

Claus Barrett Christiansen er specialist i immaterialret og markedsføringsret

Med speciale i immaterialret, markedsføringsret, licenser, brand protection og IP-strategi og mere end 20 års erfaring dækker Claus Barrett Christiansens rådgivning over alle juridiske aspekter på området. Claus har ført et stort antal sager for Landsretten, Højesteret og EU-Domstolen, og han rådgiver både små og mellemstore erhvervsvirksomheder og multinationale koncerner om strategi, retssager og brand protection, design, ophavsret og domænenavne.

I 2011 bidrog Claus til at etablere Bech-Bruuns Chinese Desk, og han har lige siden hjulpet danske virksomheder med at etablere sig på det kinesiske marked og rådgivet i kinesisk immaterialret, håndhævelse, licenser og E-handel. Samtidig rådgiver han kinesiske virksomheder om immaterialret i EU og Norden.

Claus er en populær underviser på sit fagområde og har i mere end 20 år været ekstern lektor og undervist på Københavns Universitet (gæstelektor), Aarhus Universitet, Aarhus BSS og det årlige Bech-Bruun Judge Business School-seminar for advokater på Cambridge University. Derudover er Claus formand for Danske Advokaters IP-udvalg, medlem af Patent- og Varemærkestyrelsens Ekspertgruppe for varemærker, Marques China Team og INTA Amicus Brief Committee.



  • ESG
  • Intellectual Property
  • Markedsføring og reklame
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The ‘impressive, wide-ranging team of IP experts‘ at Bech-Bruun continues to provide advice to domestic and international companies, including Sony, UEFA, and Samsung Bioepis on life sciences and patents work. Claus Barrett Christiansen and Mikkel Friis Rossa jointly lead the team, with Christiansen often advising clients on cases concerning dynamic blocking injunctions regarding trade mark infringement allegations.

Claus Barrett Christiansen has been listed as a Leading individual by Legal 500.

Legal 500, Intellectual property, 2023


Bech-Bruun houses a diverse team which advises on the full spectrum of media and entertainment issues across the social media, film, TV, and music industries. The team frequently acts for artists, licensing agencies and record companies on matters relating to distribution via traditional media and online streaming platforms.

Legal 500, Media and Entertainment, 2023


Claus Barrett Christiansen acts for clients on trade mark and design infringement disputes and issues of marketing law.

"Claus is an experienced lawyer who perfectly understands trade mark law and always knows what to do. He's easy to work with, has great legal knowledge and is very thorough in his advice."

"He is an excellent lawyer in terms of client service and the quality of legal work provided."

"Claus Barrett Christiansen demonstrates great client service and commercial awareness, and deals with complex aspects."

"He is easy to deal with and very calm. He is a very experienced litigator."

Chambers and Partners Europe 2023, Intellectual Property


"Venerable litigator Claus Barrett Christiansen heads up the trademark team and has ample experience in the courtroom, patrons warmly recommend Christiansen who is “an excellent lawyer who is extremely well-connected, pleasant to work with and a hard hitter when it is needed. There is never a problem, no matter how complicated, that remains unsolved by Claus. His heart is in everything he does, we simply know we work with the best!”"

Claus Barrett Christiansen has been listed as a Recommended Individual by WTR 1000.

World Trademark Review 1000, 2023


Claus Barrett Christiansen has been elected as Practitioner of the Year 2023 by Managing IP.

Managing IP Awards, 2023

Claus Barrett Christiansen has been elected as Trade mark star 2023 by IP Stars.

IP Stars, 2023


"One of the best IP groups in the country, Bech-Bruun provides a top service at favourable rates.” The ensemble caters to a long list of industry leaders, which benefit from a comprehensive offering and a dedicated Chinese desk; it has also been consolidating its position in the United States, where its New York branch has entered into its third year of operations. It has lately been chalking up the victories in contentious settings, including a High Court win for Scandinavia’s largest privately owned supermarket chain, Salling Group. The architect behind this was Claus Barrett Christiansen, who has a knack for turning cases around. In the words of one patron, “Claus is not only extremely skilled, proactive and trustworthy, but a lovely person too. He is a truly valued business partner who always has an answer to our problems."

World Trademark Review, 2021


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)


A trusted partner for all trademark matters, Bech-Bruun gives state-of-the-art advice and considers each client’s overall strategic aims.” The firm stands at the forefront of innovation and has been laser-focused on building a new practice dedicated to AI. Of late, the tech-savvy group has been raking in wins before the local courts, most notably on behalf of Schneider Corporation, a global electronics company. Spearheading these efforts is “superstar litigator” Claus Barrett Christiansen, the department lead receives vociferous praise from all corners of the market. “He is certainly number one in Denmark. Very few have the knowledge, experience and cultural understanding that Claus has. He is a bright, pleasant and principled individual who communicates effectively and readily makes himself available even when fighting the most interesting of cases.

World Trademark Review, 2020

Hverv og medlemskaber

  • Bestyrelsesformand, AetA Foundation Fund
  • Bestyrelsesformand, Ejendomsaktieselskabet Vest
  • Bestyrelsesformand, Kavi Invest A/S
  • Bestyrelsesformand, Margot og Thorvald Dreyers Fond
  • Bestyrelsesmedlem, Foreningen for Retsbeskyttelse af Arkitektur, Design og Kunsthåndværk
  • Bestyrelsesmedlem, United Law A/S
  • Formand, Danske Advokaters IPR-Udvalg
  • Medlem, Association of European Trade Mark Owners (MARQUES)
  • Medlem, British Literary and Copyright Association (BLACA)
  • Medlem, Danish Chinese Business Forum
  • Medlem, Dansk Forening for Industriel Retsbeskyttelse
  • Medlem, Dansk Selskab for Ophavsret
  • Medlem, DI ambassadørkorps for effektivisering
  • Medlem, DI´s E-handels udvalg
  • Medlem, EU Commission EU China IP Working Group
  • Medlem, Højesteretsskranken
  • Medlem, International Amicus Brief Committee (INTA)
  • Medlem, International Association for the Protection of Intellectual Property (AIPPI)
  • Medlem, Licensing Executives Society Scandinavia (LES Scandinavia)
  • Medlem, New York State Bar Association (NYSBA)
  • Medlem, Patent- og Varemærkestyrelsens ekspertgruppe for varemærker
  • Medlem, Sø- og Handelsrettens brugergruppe


  • EU Marks A Quarter of a Century , Intersentia Ltd, 2022. Bog
  • Industrial Design Rights, Kluwer Law International B.V., 2020. Bog
  • Enforcement of Intellectual Property Rights in the EU Member States, Intersentia Publishers, 2019. Bog
  • Community Trade Mark Regulation , C.H. Beck, 2018. 1700 sider. Bog
  • Commented Design Regulation, C.H. Beck, 2015. Bog
  • Commented Trademark Regulation, C.H. Beck, 2015. Bog
  • Community Design Regulation, C.H. Beck, 2015. 1018 sider. Bog
  • Sanktioner og håndhævelse, Gads forlag, 2015. 608 sider. Bog
  • International Design Protection, Globe Law and Business, 2012. 418 sider. Bog

Uddannelse og sprog

  • Bech-Bruun Leadership Programme: INSEAD, Frankrig
  • Wharton Partner Programme: University of Pennsylvania, USA
  • Cambridge Leadership Programme: Cambridge, England
  • LLM i Immaterialret, Kings College London, England
  • Møderet, Højesteret
  • Advokat
  • Cand.jur.
  • Engelsk