Chambers Review
Provided by Chambers


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 represented Amer Sports in patent litigation against Rottefella before the Oslo District Court.
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The team does a very thorough job in understanding the technology down to a very detailed level.
BAHR's proactive approach and thorough understanding of our industry is invaluable in resolving disputes and addressing potential conflicts.
BAHR offers a cooperative, effective and friendly working relationship.
The IP team's ability to grasp the technical nuances of the technology and the patents is just outstanding. The team can very clearly and with great skill guide the client along every step.
BAHR distinguishes itself through its exceptional legal expertise, particularly in complex intellectual property matters.
The team does a very thorough job in understanding the technology down to a very detailed level.
BAHR's proactive approach and thorough understanding of our industry is invaluable in resolving disputes and addressing potential conflicts.
BAHR offers a cooperative, effective and friendly working relationship.
The IP team's ability to grasp the technical nuances of the technology and the patents is just outstanding. The team can very clearly and with great skill guide the client along every step.
BAHR distinguishes itself through its exceptional legal expertise, particularly in complex intellectual property matters.
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Gunnar Sørlie is knowledgeable and has a strong strategic understanding.

Eirik Basmo Ellingsen continues to gain impressive recognition for his 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 is very good to work with, always following up and taking initiative. He has a good balance between practical and legal knowledge.
He is intelligent and able to understand the technical aspects.
He consistently delivers outstanding service, combining deep expertise with strong commercial insight. He provides tailored, strategic advice that adds significant value to our business.
Eirik Basmo Ellingsen has a very strong technical understanding, both of the technology and the industry.
Eirik's calm and authoritative manner instils significant confidence in clients, and his advocacy skills in the court room are outstanding.

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.
He is a very knowledgeable lawyer, and has a very good courtroom presence.
He is very responsive and elegant in the way he handles negotiations.
Knut Sverre's ability to dive into the most difficult IP matters and provide clear and value-creating advice is second to none.

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.
Anja has a very impressive overview of all the details. She combines her attention to detail with a strategic overview.
Anja Stensrud Elverum is already very experienced.
Anja combines a high level of legal sophistication with excellent client service and a strong understanding of the commercial context.




Provided by BAHR
Anja Stensrud Elverum

Head of Department
Jacob A Møller
Lars G. Norheim