IP Law

Plesner provides advice and conducts litigation in respect of all IP law aspects and we usually represent the rights holder.

Our clients include some of Denmark's leading businesses, large multinational companies, medium-sized Danish businesses, start-up businesses and individuals.

We are a leading law firm in the area of IP law and more than 20 of our lawyers specialise in IP law, many of whom have been educated in the United States, Great Britain or Germany and as a result we have a strong international perspective.

We appear before Danish courts, the Court of First Instance and the European Court of Justice, the European Patent Office (EPO), the Office for Harmonization in the Internal Market (OHIM), DIFO's Complaints Board for Domain Names, ICANN's UDRP etc.


  • Plesner is listed in "Band 1" as regards Intellectual Property. (2017)

  • Top-ranked team offering notable expertise in all areas of IP law. Best known for advising pharma companies on patent law issues, including in high-profile contentious cases. Represents notable brands in trade mark matters and also in relation to copyright. Active on data protection and compliance instructions.

    "Plesner works very proactively - the team is highly available, has a deep bench of practitioners and is good at handling cross-border tasks". (2017)
  • Within Intellectual property, Plesner is a first tier firm.

    Plesner's "efficient" team has experience representing clients in patent and trade mark infringement matters before the Maritime and Commercial Court. (2017)
  • Plesner is listed in "Band 1" as regards Intellectual Property. (2016)
  • Market-leading outfit offering long-standing experience and expertise across all areas of IP law. Highly regarded for its extensive experience in advising pharma originators on patent law. Strong trade mark practice trusted by high-profile clients. Its lawyers advise on prosecution, data protection and compliance issues.

    "This is a high-end, go-to firm for IP, with great attorneys."
    "Its lawyers have close knowledge of our procedures and portfolios, so we are able to act proactively on our matters."
  • Plesner is listed among the world's 20 best IP firms. (2016)
  • Within Intellectual property, Plesner is a first tier firm.

    Plesner "has very good industry knowledge within IP, particularly regarding IP disputes". (2016)

  • Plesner has an award-winning IP practice. Market feedback suggests it is arguably the best firm for IP litigation in Denmark. "They’re in their own small league" one rival admits. In particular, the firm is often seen in the most complex pharmaceutical patent cases in the country. "Traditionally strong in all IP" says another commentator. (2016)
  • Plesner is listed in "Band 1" as regards Intellectual Property. (2015)
  • "Mighty" full-service firm Plesner continues its reign at the apex of the market. The darling of many pharmaceutical giants, it is the only Danish firm to count three specialist patent litigators among its ranks. As such, it attracts the lion’s share of contentious instructions and is "probably the only firm in a position to turn down work". (2015)
  • Though Plesner’s patent practice takes centre stage, sources are also quick to commend its proficiency in trademark affairs. Like its counterparts in the gold tier, it has made significant moves in the prosecution area lately (2015)
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