Patent Law

Plesner has Denmark's strongest team of patent law attorneys. Our patent law experience, our availability, our business insight and our ability to understand and challenge technology enable us to provide the best patent law advice in Denmark.

Every year, we advise on and handle a significant number of patent cases. For example, Plesner represents a large number of original manufacturers in the pharmaceutical area, including nine out of ten of the largest pharmaceutical companies in the world.

Our services cover all aspects of patent law, particularly:

  • Cases concerning patent infringement and the validity of patents, utility models and SPCs
  • Cases concerning the ownership of inventions, including the rights of employees, researchers and co-inventors
  • Cases concerning the preservation of evidence
  • Preparation and negotiation of agreements, including R&D agreements and licence agreements
  • IP transactions
  • IP risk management
  • Strategic optimisation of global enforcement options
  • The EU Unified Patent Court

Many of our cases extend across borders, and we therefore collaborate with leading foreign patent legal advisors on a regular basis. These collaborations give us access to an international network that enables us to act smoothly, even outside Denmark.

Ratings
Within Intellectual property, Plesner is a first tier firm.
"Plesner’s IP team has exceptional technical understanding and in combination with their strong patent litigation foundation, they are unique in Denmark"
2024
The Legal 500
Denmark Patent Disputes Firm of the Year.

Denmark Copyright & Design Firm of the Year.
2024
Managing IP Awards
Plesner is listed in "Band 1" as regards Intellectual Property.

"The lawyers are very responsive and provide succinct advice"

"The law firm has strong expertise in IP matters. The lawyers are pragmatic and client-focused, with strong commercial acumen"

"Plesner has a very experienced team with an excellent reputation. It is impressive in its handling of patent litigation matters in the life sciences sector"
2024
Chambers Global
Within Intellectual property, Plesner is a first tier firm.

"Plesner are the leading patent firm in Denmark. They offer a golden service to all their clients. They are a very integrated team. They help each other, are open to discussion and listen carefully, outstanding in cross-border cooperation"

"Plesner is undoubtedly the top team in Denmark for IP, and in particular life sciences patents disputes. They are at the top of their game with excellent work, and dishing out excellent advice. Hugely collaborative and a pleasure to work with"

"The IP team at Plesner really works as a team. The team’s involvement of external parties such as patent advisers and the management of the court cases is very professional and efficient"
2023
The Legal 500
Plesner is listed in "Band 1" as regards Intellectual Property.

"Plesner is the most well-placed law firm for pharmaceutical patent litigation in Denmark. It has a very good understanding of the pharmaceutical industry"

"The team provides top-rated client service and commercial awareness"

"The depth of the team's legal knowledge is impressive"

"The lawyers are very responsive and swift in making sure that they confirm our requests"

"Plesner is one of the best law firms dealing with complex IP matters"
2023
Chambers Global
Denmark Patent Disputes Firm of the Year.

Denmark Trademark Firm of the Year - Law Firms.

Denmark Copyright & Design Firm of the Year.

Europe Patent Litigation Team of the Year.
2023
Managing IP Awards
As the only law firm in Denmark, Plesner is ranked in Tier 1 as regards Copyright & Related Rights, Patent Contentious, Trade Mark Contentious and Trade Mark Prosecution - Law Firms.
2022
IP Stars
Within patent litigation and transactions Plesner is a Gold Firm.

The IP market is unanimous in its praise for Plesner, a full-service outfit that practises at the very summit of the Danish patent litigation scene:

“What impresses me the most is the depth and breadth of its expertise as well as the size of the team, which is just full of immensely talented litigators”

“Plesner’s lawyers are exceptionally strong, highly skilled and without a doubt an excellent bunch”
2022
iam 1000
Within Intellectual property, Plesner is a first tier firm.

"The IP Team at Plesner are always delivering high quality work in a relaxed trust-based atmosphere. Compared to other law firms in Denmark, they have a unique ability to understand the commercial setting in which their clients act"

"They can translate complex matters into advice that is easily understood and can be used internally to business stakeholders. All employees are highly skilled within their area of expertise and seniority and always act with high integrity and engagement regardless of the size and complexity of the assignment"

"The Plesner team stand out as the largest patent litigation team in Denmark. They are a preferred choice by several pharma brands and by many other patent owners, eg. within the food industry, hearing aids and many other tech areas. They are thorough, open-minded and innovative in their approach. I think they are excellent at what they do"

"Plesner’s IP team is a very skilled and at the same time pragmatic team. They are friendly, easy to work and communicate with and never over-complicate things"
2022
The Legal 500
Plesner is listed in "Band 1" as regards Intellectual Property.

"The Plesner team has an ever welcoming approach and a very high level of knowledge both of our company and of the IP regulation"
2022
Chambers Global
Denmark Patent Contentious Firm of the Year.

Denmark Copyright & Design Firm of the Year.
2022
Managing IP Awards