LAWYER PROFILE
Marleen van den Horst

Marleen van den Horst

Europe 2026

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La Gro
 La Gro

Ranked in 1 practice area

Intellectual Property: Patent

Netherlands

18 years ranked

Contributions and articles

1 Global Practice Guides

About

Provided by La Gro

Practice Areas

* Patent litigator - UPC representative

* IP & technology

* Life sciences, Pharma & regulatory

* Patents and technology

* Healthcare

* High tech/telecoms

Career

IP & Technology partner Marleen van den Horst (J.D.) has over 25 years’ experience in multi-jurisdictional patent litigation, including cases before the Unified Patent Court. She successfully represents clients in patent disputes in all fields of technology.

Marleen is internationally renowned for her patent, regulatory and product liability work in the life sciences. She conducts patent/SPC litigation and provides strategic advice regarding drugs containing APIs like escitalopram, glatiramer acetate, rivastigmine, zoledronate, fingolimod, eculizumab, aflibercept and e.g. CRISPRCas9 technology. In the field of high tech/telecoms Marleen advises on European/UPC litigation strategy for enforcing SEP patents and FRAND-related issues. She is a frequent speaker at international conferences.

Professional Memberships

* Board member of the NeoKidney Foundation for the development of a portable artificial kidney.

* Member of several professional organisations and trade associations, such as EPLAW,

AIPPI, LES, VF&R and VIEPA.

Chambers Review

Provided by Chambers

Chambers European Guide

Intellectual Property: Patent - Netherlands

Band 3
Individual Editorial

Marleen van den Horst is particularly popular with clients from the pharmaceutical industry for advice on the IP aspects of product launches, as well as patent infringement and invalidity actions. In addition, she represents clients in patent enforcement proceedings.

Learn more about this teamView ranking table

Strengths

Provided by Chambers

  • Marleen van den Horst understands the industry, her clients and the IP landscape. She has the best command of all IP issues that need to be considered when handling our complex cases.

    Intellectual Property: PatentChambers European Guide

  • Marleen van den Horst is an excellent lawyer with much experience.

    Intellectual Property: PatentChambers European Guide

  • She is very approachable and knows how to pinpoint to us what exactly needs to be done and how.

    Intellectual Property: PatentChambers European Guide

  • Marleen always attends to her cases in a timely and effective manner.

    Intellectual Property: PatentChambers European Guide

  • Marleen's command of IP matters in the Netherlands is outstanding. You know you are in good hands and that there will be no loose ends in how your case is being handled.

    Intellectual Property: PatentChambers European Guide

Ranked Individuals at La Gro (2)

Netherlands

All Contributions (1)

Provided by La Gro

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