ARTICLE
23 July 2025

Change To UPC CMS Opens Door To Opt Out Challenge

JA
J A Kemp LLP

Contributor

J A Kemp is a leading firm of European Patent and Trade Mark Attorneys. We combine independent thinking with collective excellence in all that we do. The technical and legal knowledge that we apply to the protection of our clients’ patents is outstanding in its breadth and depth. With around 100 science and technology graduates in the firm, including 50 PhDs, no area of science or technology is outside our scope. Our Patent Attorneys have collective in-depth expertise in patent law and procedure in every country of the world. The team of professionals who advise our clients on trade mark and design matters have backgrounds in major international law firms and hold qualifications as Chartered UK Trade Mark Attorneys, Solicitors and European Trade Mark Professional Representatives. Dedicated to this specialist area of intellectual property protection, the team has the expertise and resources to protect trade marks and designs in any market worldwide.
Following the introduction of the new Unified Patent Court (UPC) Case Management System (CMS), it is now possible to view the opt out submissions of third parties.
United States Intellectual Property

Following the introduction of the new Unified Patent Court (UPC) Case Management System (CMS), it is now possible to view the opt out submissions of third parties. This includes submissions previously made under the old CMS, including opt outs filed in the sunrise period before the UPC opened its doors.

Under the old CMS, it was only possible to tell that an opt out had been filed and by whom. Therefore there was limited opportunity to check the validity of a third party opt out. Under the new system it is possible to view the opt out document(s) actually filed. This will allow third parties to check opt out documents for completeness and accuracy. This could potentially lead to more challenges against the validity of an opt out, for example on the basis that not all proprietors for all states consented to the opt out. In such a case, as already confirmed by the Court of Appeal in Neo v Toyota, the opt out is deemed invalid and a central revocation action can be brought at the UPC despite the opt out.

Opt outs can be viewed on the UPC website here.

J A Kemp LLP acts for clients in the USA, Europe and globally, advising on UK and European patent practice and representing them before the European Patent Office, UKIPO and Unified Patent Court. We have in-depth expertise in a wide range of technologies, including Biotech and Life Sciences, Pharmaceuticals, Software and IT, Chemistry, Electronics and Engineering and many others. See our website to

The content of this article is intended to provide a general guide to the subject matter. Specialist advice should be sought about your specific circumstances.



Mondaq uses cookies on this website. By using our website you agree to our use of cookies as set out in our Privacy Policy.

Learn More