
Bech-Bruun is particularly strong in patent infringement cases, regularly representing Danish and international clients. The firm is a leader in tech transfers, transactional work, and licensing issues across industries, while also excelling in trademarks, design, and marketing law with a team of dedicated experts. The practice is co-headed by Claus Barrett Christiansen, a veteran in IP litigation with extensive experience before the Maritime and Commercial High Court and the Danish Supreme Court, and Mikkel Friis Rossa. Klaus Ewald Madsen is a renowned patent litigator, particularly in pharmaceuticals and medical devices, while Jeppe Brinck-Jensen specialises in patents, trademarks, and trade secrets in sectors like life sciences and food. Dan Bjerg Geary focuses on patent licensing and IPR strategies, and Sisse Langberg Lassen is noted for IP litigation and strategic corporate advice.
Testimonials
Collated independently by Legal 500 research team.
‘A pleasure working with the team. The team is service-minded, proactive and has great business insights.’
‘Dan Geary and Klaus Ewald Madsen can apply the law to highly technical and complex patents and patent claims, thereby enabling progression and great traction in their cases.’
‘High level of specialist knowledge in patent law.’
‘Klaus Ewald Madsen is very experienced, capable of devising excellent legal strategies and highly skilled in patent law.’
‘Bech-Bruun’s IP team continues to deliver over a broad range of IP and contractual issues. Collaboration is second to none in terms of availability, responsiveness and tailor-made advice and input.’
‘Dan Bjerg Geary excels in complex licensing and IP strategy work and is our go-to guy for IP and commercial contract advice. He is best-in-class in industry understanding and displays a remarkable ability to deliver to the point. Geary has an impeccable track record in securing deals and winning litigation.’
‘We have been working with Claus Barrett Christiansen and his team at Bech-Bruun on almost all our global IP and contractual work for several years now. They are some of the most excellent IP specialist lawyers we have worked with, clearly demonstrating an in-depth knowledge of all issues related to design, copyright, and trademark registration and protection.’
- 'Claus Barrett Christiansen and his team are all very professional, tough, experienced and responsive, and they never give up.'
Key clients
- KK Wind Solutions A/S
- Aarhus Vand
- Energinet
- Nel Hydrogen AS
- Cryptomathic Ltd./Cryptomathic A/S
- The Lundbeck Foundation
- Novonesis
- Novo Holdings
- Merck Sharpe & Dohme
- Jaguar Land Rover
- Eames Family Office
Work highlights
- Advised Nel ASA in the negotiation of a worldwide licence and technology transfer agreement for alkaline electrolysis technology with Reliance Industries.
- Represented Danish Crown in the first Danish marketing climate case before the High Court of Western Denmark and subsequently before the Danish Supreme Court concerning alleged greenwashing claims and marketing law violation against Greenpeace, the Danish Climate Movement and the Vegetarian Society of Denmark.
- Successfully represented Schneider Electric in PI litigation and seizure of evidence proceedings against a Danish subsidiary of the large Norwegian manufacturer of electric materials, SG Armaturen, before the Maritime and Commercial High Court, the High Courts of Denmark and the enforcement courts regarding copyright, design rights and claims regarding violation of the Marketing Practices Act.
Lawyers

Practice head
The lawyer(s) leading their teams.
Claus Barrett Christiansen, Mikkel Friis Rossa