Klaus Ewald Madsen


About Klaus Ewald Madsen

Right of audience, The Danish Supreme Court 1994
Admission to practice law 1989
Master of Laws 1986

English, Swedish, Norwegian

Klaus Ewald Madsen specialises in patent law, life science, marketing, copyright and design law.

Klaus represents Danish and foreign businesses and advises clients on issues concerning intellectual property law, marketing law and the regulatory aspects of medicinal products.

He has substantial international experience, in particular, in the negotiation and conclusion of licence and other intellectual property agreements.

Moreover, Klaus is a seasoned litigator and regularly litigates several injunction and court cases within the field of intellectual property law. In recent years, he has represented clients in a significant number of patent cases, particularly within the area of pharmaceutical law.

Personal ratings

Managing IP 2017
- Patent star 2017

Head of IP and technology Klaus Ewald Madsen is the most prominent practitioner for patent litigation and advisory work.

Managing Intellectual Property/patent

Client Choice - International Law Office

Client Choice of the year 2016 - Exclusive Winner - Intellectual Property - Patents Category for Denmark
- IP & Technology

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)

Chambers and partners

Chambers Europe Rating 2017
- Intellectual Property

Head of department Klaus Madsen has extensive experience in contentious pharmaceutical patent cases as well as in cases concerning IT and mechanical devices. He recently represented Krka in a patent case against Pfizer concerning the medicinal product Pregabalin.

Chambers and Partners Europe, Intellectual Property

Chambers Global Rating 2018
- Intellectual Property

Klaus Madsen frequently advises clients from the pharmaceutical sector on patent and life sciences law, and is a highly regarded patent litigator. He also acts on behalf of clients on marketing and design law matters.

Chambers and Partners Global, Intellectual Property

Bech-Bruun Recommended by Legal500

Legal500 Rating 2017
- Intellectual Property

Patent litigation expert Klaus Ewald Madsen leads the group.

Legal 500, Intellectual property


  • 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
  • Board of directors (chairman), FairPoint Outdoors A/S
  • Member, International Association for the Protection of Intellectual Property (AIPPI)
  • Member, European Patent Lawyers (EPLAW)


  • Industrial Design Rights - An International Perspective
    Kluwer, 2001, Book
  • Copenhagen

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  • Aarhus

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