LAWYER PROFILE

Mark Jansen

USA 2026

Chambers ranking badge
Chambers ranking badge

Ranked in 2 practice areas

Chambers Review

Provided by Chambers

Chambers Guide to the USA

Intellectual Property: Trademark, Copyright & Trade Secrets: Transactional - New York

Band 1
Band 1

Individual Editorial

Mark Jansen regularly represents significant technology clients on a range of IP work. His expertise spans both trademark and copyright matters, including portfolio management and enforcement, as well as licensing and clearance work.

Intellectual Property: Trademark, Copyright & Trade Secrets - New York

Band 4
Band 4

Individual Editorial

Mark Jansen regularly represents significant technology clients on a range of IP work. His expertise spans both trademark and copyright matters, including portfolio management and enforcement, as well as licensing and clearance work.

Strengths

Provided by Chambers

  • Mark is a practically minded and knowledgeable IP lawyer. We have yet to raise an issue that he hasn't seen before and he is on top of the latest developments in the IP world, particularly in the tech industry.

    Intellectual Property: Trademark, Copyright & Trade Secrets: TransactionalChambers Guide to the USA
  • Mark makes sound technical decisions.

    Intellectual Property: Trademark, Copyright & Trade Secrets: TransactionalChambers Guide to the USA
  • Mark has a profound way of looking under the hood and thinking about second and third order effects.

    Intellectual Property: Trademark, Copyright & Trade Secrets: TransactionalChambers Guide to the USA

Ranked Individuals at Fenwick (74)

California

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