Dr. Clemens Plassmann

Dr. Clemens Plassmann

Partner, Dusseldorf

Email clemens.plassmann@​hoganlovells.com

Phone +49 211 13 68 360

Fax +49 211 13 68 100

LanguagesEnglish, French, German

Practice groupIntellectual Property

Clemens Plassmann is a leader in intellectual property matters with a focus on technical IP rights (patents and utility models).

Clemens conducted numerous patent infringement lawsuits before the German civil courts and worked on parallel validity proceedings before the German Patent and Trademark Office, the German Federal Patent Court, the German Federal Supreme Court and the European Patent Office. He has a great deal of experience in coordinating multi-jurisdictional patent disputes (including arbitrations) in Europe. Clemens is also active in client counselling as regards licensing, transactional IP and the law of employees' inventions. He increasingly advises on strategic issues related to the upcoming system of the Unified Patent Court in Europe. 

Awards and recognitions


Recommended lawyer for patent law
JUVE handbook


Included for Intellectual Property and Information Technology law
Edition Best Lawyers™ in Germany


IP Star Patents
Managing Intellectual Property


One of the world's leading practitioners for patent law
Who's Who Legal

Education and admissions


Dr. iur., Freie Universität Berlin, 1996

Second State Exam in Law, Berlin, 1995

First State Exam in Law, LMU Munich (Ludwig-Maximilians-Universität München), 1990


German Association for the Protection of Intellectual Property (GRUR)

Association of Intellectual Property Experts (VPP)

European Patent Lawyers Association (EPLAW)

Representative experience

Advising in major transactions on various IP issues (examination of IP portfolios; assessment of related risks, etc.).

Coordinating complex Europe-wide patent litigation for an innovative medical devices company over the last 10 years.

Conducting comprehensive arbitration proceedings according to the rules of arbitration of the World Intellectual Property Organization.

Acting for QIAGEN in complex biotech patent disputes.

Conducting a major licensing dispute before the German courts from first to last instance (life sciences).

Advising and representing a manufacturer of special chemicals in the field of trade secrets and know-how protection.

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