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Legal Update

Unified Patent Court Agreement ratified by the UK

15 May 2018
Mayer Brown Legal Update

The UK ratified the Unified Patent Court Agreement ("UPCA") on 26 April 2018. The UPCA will introduce the Unified Patent Court which will establish a single scheme for patent litigation across contracting Member States.

The UK is the sixteenth country to ratify the UPCA, and is one of the three countries whose ratification is required for the regime to come into being, the others being France and Germany. France ratified in 2014, while Germany has yet to finalise the legislative process to ratify the UPCA. Following the submission of a constitutional complaint against the German participation in the UPC system before the German Federal Constitutional Court in mid-2017, ratification of the UPCA was put on hold. The Federal Constitutional Court is expected to rule on the complaint in autumn 2018. If the Court dismissed the complaint, ratification would likely happen shortly after that.

Joining the UPCA as a contracting Member State will mean that, despite Brexit, the UK will have access to a streamlined, singular approach to patent enforcement across Europe, at least during the transitional period to follow Brexit, which will give the UK time to renegotiate its continued involvement in the UPC following the end of that period.


  • Oliver Yaros
    T +44 20 3130 3698
  • Mark A. Prinsley
    T +44 20 3130 3900
  • Dr. Ulrich Worm
    T +49 69 7941 2981
  • Christoph J. Crützen
    T +49 211 86224 120
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