Håmsø Patentbyrå

Norway

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IP STARS Reviews

Overview

Håmsø Patentbyrå is an IP firm that is recommended for prosecution, filing and Scandanavian administrative proceedings. The firm specialises in gas technology and aquaculture patents. Its attorneys also have expertise in renewable energy, nanotechnology, engineering, and mechanics.   

Notable patent practitioners: Richard Weaver, Kjell Arne Hoff and Arnfinn Meihack and Krister Mangersnes.

Notable trademark practitioners: Reidun Rosså Korsberg.

Managing director and patent star Krister Mangersnes leads the patent department and Arnfinn Meihack. Reidun Rosså Korsberg is the manager of the trade mark and designs team.

Testimonial

2025

"High-quality, service-minded [team]."

A client appreciates the team's "knowledge and response time".

"We have been pleased with their collaboration."

"They are excellent."

"The service they provide is outstanding. They are my go-to partner for my clients' IP matters in Europe."

A client likes the "level of expertise, service and also understanding of the commercial and strategic picture".

"Talented patent attorneys."

"Excellent technical and commercial understanding. They always deliver."

"Håmsø has a solid team that offers excellent work at fair costs and has a good reputation."

"They are highly competent in the energy technology industry."

"They understand the engineering part of the patent."

One client likes the team's "competence, responsiveness and friendliness".

"Responsive, proactive and pleasant to work with."

 

Andy Caulfield

Andy Caulfield is a "genius" who "handles complex cases in a very easy manner and is able to structure and break down the complexity of a case so that everybody in the team can work with it".

"[Caulfield] and Josh McLennon build a patent attorney force which every lawyer wishes to have on its side when the wind gets stronger."

 

Krister Mangersnes

"The best in Norway."

"Krister Mangersnes is very responsive."

"Excellent quality."

Patent

The firm represented an industrial manufacturer in opposition before the German Patent Office. It also acted for a subsea oil patentee in a successful opposition appeal. Patent advisor Rob Valkass joined the firm in August 2024.

Trade mark

Case highlights include EUIPO opposition work and sponsorship counsel for a professional footballer. It also acted for a shipping logistics firm in NIPO opposition.