CMS Kluge provides a full-service IP offering, advising clients on transactions and due diligence across patents, designs, trademarks, and copyright. The firm is particularly experienced in handling IP issues for clients in the music, technology, oil services, and public sectors. The practice is jointly led by copyright and trademark specialist Thomas Rieber-Mohn and energy IP expert Kyrre Tangen Andersen.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- ‘CMS Kluge stands out for its speed, structured approach, and ability to turn complex issues—especially AI and our conflict-of-interest matters into clear, actionable solutions. Clients value their concise, outcome-driven advice, strong partner involvement, and practical innovation in areas like AI governance and collaboration, which sets them apart from firms that deliver lengthy theoretical analyses.’
- ‘The IP team at CMS Kluge stands out for its combination of technical excellence and commercial awareness. The lawyers are pragmatic and responsive. The practice covers the full range of IP matters. However, I have mostly worked with CMS Kluge on trademark matters, where they consistently deliver advice that is both sophisticated and practical. From my interactions, it is clear that the CMS Kluge IP team shares this same culture of professionalism, collaboration, and accessibility. The practice combines top-tier legal expertise with a distinctly practical approach, making their advice both sophisticated and actionable. The team’s integration of technology and their openness to flexible, client-adapted solutions also set them apart in the Norwegian market.’
- ‘Thomas Rieber-Mohn brings an impressive combination of sharp legal instinct and genuine commercial understanding to trademark law. He has a calm, confident way of approaching complex questions and an ability to identify what truly matters for the client’s position. Thomas is also remarkably responsive and collaborative. In short, he is the kind of lawyer who makes even demanding projects feel structured and manageable.’
- ‘CMS Kluge stands out as a top-tier intellectual property rights (IPR) practice in Norway by combining deep legal expertise with a pragmatic, agile approach. Unlike traditional firms that may take a rigid or overly academic route, CMS Kluge’s lawyers work in close partnership with clients, tailoring advice to commercial realities and industry-specific needs. Their ability to translate complex IPR challenges into practical solutions sets them apart in a fast-changing legal and business landscape.’
- ‘The individuals at CMS Kluge stand out not only for their deep expertise in intellectual property rights but also for their pragmatic, solution-driven approach. They combine a sharp legal mind with genuine commercial awareness, making their advice both technically sound and strategically valuable. Among an already strong group, Thomas Rieber-Mohn is a true standout. He combines exceptional legal expertise with an ability to communicate complex issues in a clear and accessible way. Clients value his strategic vision, calm leadership, and sharp advocacy, particularly in high-stakes matters. Thomas has a rare ability to balance technical depth with commercial pragmatism, ensuring that his advice is not only correct but also actionable. His approachability and commitment to client success make him a trusted advisor and a differentiator compared to peers at other firms.'
- ‘Young, dynamic, ambitious, and highly capable. ’
Key clients
- Seismeq
- Subsea Solutions
- Dolly Dimple’s
- Interwell
- Norsk Tipping
- Hydra Well Intervention
- Stax Capital
- Mowi
- Garvik Gruppen
- Irootfor
- Adobe
- Stripe
Work highlights
Representing Subsea Solutions on a significant patent case in the oil & gas industry, concerning infringement and validity of a Norwegian patent.
Representing Norsk Tipping on a trademark opposition dispute before EUIPO relating to the protection of the VIKINGLOTTO trade mark, used across Scandinavia, the Baltics, and Slovenia.
Represented Stax Capital before the IP Appeal Board and succeeded in having the opposition against one of its trade marks dismissed in its entirety.
Practice head
Thomas Rieber-Mohn; Kyrre Tangen Andersen
