Klaus Ewald Madsen

Photo of Klaus Ewald Madsen

Klaus Ewald Madsen is an intellectual property law specialist

Klaus Ewald Madsen specialises in intellectual property law and life sciences. He works primarily with patents, regulatory issues and marketing.

Klaus is a highly skilled litigator and has over the years argued a considerable number of patent law cases concerning pharmaceuticals, medical devices and also in the areas of electronics and mechanics.

He also has extensive international experience in, among other things, negotiating and concluding licence agreements and other IPR agreements.

With his direct and honest style, Klaus is a much sought-after adviser, representing and advising Danish as well as non-Danish enterprises.


The Team

Intellectual Property

  • Intellectual Property
  • Marketing and Advertising
  • Life Science
00 / 00


Legal 500 - Bech-Bruun

Bech-Bruun is a market leader for patent work and houses the ‘best life sciences practice in Denmark’. It is also prominent in trademarks, design issues and marketing work (…). For patent infringement cases, Klaus Ewald Madsen is recommended.

Klaus Ewald Madsen has been listed as Hall of Fame by Legal 500.

Legal 500, Intellectual property


Klaus Madsen advances in the rankings following impressive market recognition. He receives plaudits for his expertise in patent disputes, often representing pharmaceutical companies. Interviewees note his great presence in the courtroom.

Klaus Madsen has been ranked in Band 1 as top lawyer within Intellectual Property by Chambers and Partners Global.

Chambers and Partners Global 2022, Intellectual Property

"Bech-Bruun has an impressive team of legal experts ready for any task related to IP. The team delivers proactive, commercial-oriented advice and is very valued," says a client.

Managing Intellectual Property/patent

Client Choice - International Law Office

Klaus Ewald Madsen has been elected to be International Winner in Client Choice of the year – Intellectual Property - Patents Category for Denmark.

Source: International Law Office (ILO)


  • Board of directors (chairman), Torben Herman Christensen Holding A/S
  • Board of directors (chairman), CM Holding A/S
  • Board of directors (chairman), ECS Eurocargo A/S
  • Member, International Association for the Protection of Intellectual Property (AIPPI)
  • Member, European Patent Lawyers (EPLAW)


  • Industrial Design Rights, Kluwer Law International B.V., 2020. 529 pages. Book

Education and language

  • Right of audience, The Danish Supreme Court
  • Admission to practice law
  • Master of Laws
  • English
  • Swedish
  • Norwegian
Partner Klaus Ewald Madsen
"I make a considerable effort to think strategically and basically get the best possible result under the given circumstances and always taking into account the commercial aspects."
Show more