Kai has been lead counsel in a number of multi-jurisdictional patent disputes covering a wide range of technical fields. Kai is noted not only for his practice in representing clients involved in complex SEP and FRAND licensing disputes but also for his deep experience in the life sciences sector.

Kai's experience

  • Representing ZTE in various SEP/FRAND litigations against Samsung before the German courts and the UPC relating to 5G.

  • Representing Agfa in patent infringement and revocation proceedings before the UPC in relation to technology for printing on leather.

  • Representing Newron and Zambon in preliminary injunction proceedings concerning their Parkinson’s drug Xadago (safinamide) against multiple generic parties.

  • Representing global battery manufacturer in defending patent infringement proceedings in Germany.

  • Representing BAT in patent infringement and revocation proceedings before the German courts relating to technology for heat-not burn e-cigarettes.

  • Representing Alcon in patent infringement and revocation proceedings before the German courts relating to laser systems for cataract surgery.

Credentials

  • 2026
    Joined Pinsent Masons
  • 2015
    VOSSIUS, Partner
  • 2005
    Admission to bar - Germany
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Specialisms

Out-Law / Insight by Dr. Kai Rüting, LL.M.

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