Chambers Review
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Provided by BAHR
BAHR's IP practice covers all areas of contentious and non-contentious IP law. We combine deep litigation experience with strategic advisory capabilities, assisting clients with IP strategy development, technology acquisitions, and the full range of IP agreements. Our expertise spans patents, trademarks, copyright, design rights, marketing regulations, and trade secrets, serving Nordic and international clients across diverse sectors.
Litigation forms the cornerstone of our practice. Our track record in high-stakes IP disputes has established BAHR as a leading firm for complex matters demanding strategic acumen and technical expertise. We are particularly recognised for our work with major multinational pharmaceutical companies and international clients in aquaculture and energy technologies. Our litigation portfolio encompasses patent validity challenges, infringement proceedings, trade secret, copyright, trademark and marketing control disputes, and regulatory matters.
We advise on IP transactions, technology transfers, and IP-driven M&A across all industries. We handle licensing frameworks, technology development agreements, strategic partnerships, and joint ventures that protect and maximise IP value. Our practice has particular strength in franchising, marketing, and advertising within the retail sector, where we help clients navigate consumer protection and competition law requirements whilst delivering strategic counsel on brand protection and enforcement.
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BAHR acted for Biogen on a patent litigation case concerning the validity of Biogen’s patent for Tecfidera.
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The team understands the specifics of our industry and combines this understanding with deep legal insights.
The lawyers at BAHR are excellent. They are experts on patent litigation and are results-oriented and super responsive.
BAHR has a specialised team that attracts talent. We are very pleased with the quality of the service and timeliness of responses.
BAHR supports us in both technology and IP with a very good understanding and grasp of business.
The team understands the specifics of our industry and combines this understanding with deep legal insights.
The lawyers at BAHR are excellent. They are experts on patent litigation and are results-oriented and super responsive.
BAHR has a specialised team that attracts talent. We are very pleased with the quality of the service and timeliness of responses.
BAHR supports us in both technology and IP with a very good understanding and grasp of business.
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Gunnar Sørlie is a very experienced patent litigator.

Knut Sverre Skurdal Andresen frequently advises clients from the pharmaceutical and life sciences sectors on contentious and non-contentious matters related to patents and SPCs as well as licensing and partnering agreements.
Knut Sverre Skurdal Andresen is a brilliant lawyer who is always solving issues at the highest level.
Knut Sverre Skurdal Andresen has a customer service mindset and is always on top of things, delivering work beyond expectations.

The up-and-coming Eirik Basmo Ellingsen continues to gain impressive recognition for his growing IP practice. He heads the department at BAHR and is knowledgeable in patent validity and infringement cases, and also advises on the IP aspects of commercial agreements.
Eirik Basmo Ellingsen is extremely bright and a well-structured, strategic thinker. He does an excellent job in leading patent litigation.

Anja Stensrud Elverum acts for clients on a range of patent and copyright disputes. Her clients include multinational companies acting in the life sciences, sporting and music industries.
She has an impressive ability to really know the details of the case and provide advice.
Anja Stensrud Elverum has very good insight into the complexity of the cases and always delivers well.




Provided by BAHR
Eirik Basmo Ellingsen
Head of Department
Jacob A Møller
Lars G Norheim