Ranked in 1 Practice Areas
2

Band 2

Ranked in Guides

About

Provided by David Por

Global

Practice Areas

David is an experienced patent litigator, who concentrates primarily on complex and cross-border patent disputes, in particular in the technology sector.

David focuses primarily on patent cases, in which he also advises on validity and freedom to operate issues. David has notably represented leading actors in the patent wars of the telecommunications sector, as well as numerous pharmaceutical companies in proceedings against generics.

In addition, David has also a strong experience advising clients on trade secrets matters, defamation disputes and media litigation.

David has also become a specialist of the interplay between intellectual property and competition law, and is regularly invited to speak at industry conferences on this topic. As such, he recently drafted the French Chapter of The second edition of the Intellectual and Antitrust Review.

David publishes regularly in the field of patent law. He notably co-authored the training manual for future UPC judges.

David is a member of the directing committee of the Intellectual Property Lawyers Association and on the board of directors of the European Patent Practitioners’ Association.

Chambers Review

Provided by Chambers

Chambers Global Guide

Intellectual Property: Patents - France

2
Band 2
Individual Editorial

David Por acts regularly on behalf of technology, telecoms and pharmaceutical clients in patent infringement and FRAND disputes. He joined Clifford Chance in March 2025.

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