After years of debate and preparation, the Unified Patent Court (UPC) started accepting cases on 1 June 2023. From the same date European patents were able to be granted unitary effect (so-called "unitary patents" (UPs). Click on the boxes towards the bottom of this page to find out more about the UPC and unitary patent and a strategic approach to the new court system and see our UPC blog post series here for updates. See also our latest UPC briefing: Two and a half years of the UPC – Trends and turning points.
The introduction of the European patent package involved the creation of a single court in which to hear European patent disputes (the Unified Patent Court (UPC)) and unitary patent right (UP), across most of the EU, and is the culmination of decades of work.
Now the new system is in place, it brings with it fundamental changes to the way in which patents can be litigated and granted in Europe. Once the UPC was in place, the new UP right was able to be granted (as an option at the grantof an EP – strictly a UP is an EP "with unitary effect"). Those UPs granted up to 31 August 2024 cover the original 18 EU Member States which had fully ratified the UPC Agreement (UPCA) when the UPC commenced. Those granted from 1 September 2024 will also cover Romania which became a full member of the UPC group of countries from this date.
Those not wishing their current European patents (EPs) and any granting over the next 7 years (during the UPC transition period) to be subject to the UPC's jurisdiction, can opt their EPs out of the UPC's jurisdiction. However once the transition period is over, all newly granting EPs will be subject to the jurisdiction of the UPC exclusively.
Our UPC & UP hub will help you examine the issues below and assess their impact on your business:
- How your existing and future European patents are/will be impacted by the new system?
- How to use the one-stop-shop nature of patent enforcement in the era of the UPC to your benefit?
- What opportunities and risks are presented by the parallel jurisdiction of the UPC and national courts over European patents during the transition period?
- What risks are there for parties brought into the UPC system as defendants and facing pan-European injunctions and damages and what defensive strategies can be employed?
- What is the picture for unitary patents, the new supra-national patent right for Europe?
- What should your business be doing to take advantage of the opportunities of this new patent system and minimise the risks?
For help and commentary on all these issues, please see our quick guide to the UPC and unitary patents (via the tiles below) and in particular read our series of briefings on the UPC starting with Two and a half years of the UPC – Trends and turning points and linking within each to earlier briefings providing six monthly updates since the commencement of the UPC and our regular IP Notes blog posts on UPC and UP developments here.
How we can help
Our fully integrated, market leading team, is on the ground in France, Germany, Italy and the UK and has decades of experience in running multi-jurisdictional patent litigation in respect of our clients' most valuable products, including experience in the jurisdictions which will inform the UPC's procedure in due course.
We are able to use legal, technical and strategic skills from across our whole European team to give you the best advice on your UPC or national matters, with the qualifications necessary to handle cases whether they are in the UPC or key national courts.
The new UPC court system has jurisdiction over EPs in all participating EU member states (currently 18), but litigation will also need to continue in non-participating EPC states, including the UK and the six EU member states that have not yet ratified the UPC Agreement (three of which have declared it their intention not to join at all), and in national courts of participating states in relation to EPs opted out of the UPC's jurisdiction.
So, the picture for patent litigation across Europe is more multi-jurisdictional than ever. Our team has unrivalled experience the execution and management of multi-jurisdictional patent litigation, which will still be a key element of patent enforcement in Europe.
For more information and advice on the new system, please contact Laura Orlando, Sebastian Moore, or any of the other key contacts listed below.
UPC Court of Appeal outlines criteria for jurisdiction between UPC courts and links enabling multiple defendants to be sued in one court including those not domiciled in the UPC
2 July 2026
This clarification by the CoA will be welcomed by patentees seeking to streamline proceedings and bring all potential defendants to the same location for determination of infringement and effective action against supply chains and others supporting infringing activity.
Where is the UPC after two and a half years - and what to expect in 2026?
19 January 2026
Our latest UPC briefing Two and a half years of the UPC – Trends and turning points is now out. In it we look back at developments in the last six months since our previous update (The UPC Two Years On - July 2025) and consider what this increasingly well-established jurisdiction may offer us in 2026.
See below for quick guides to the key elements of the UPC and unitary patent and the relevant legislation and procedural rules.
The Unified patent court and unitary patent – An introduction
UPC Structure – local, regional and central divisions and Court of Appeal, Judges & Languages
Which states are in the UPC & where will a UP have effect?
UPC: Jurisdiction and opt-out
How to get a Unitary Patent
The UPC Rules
UPC Court Fees
The UPC and the UP: impact on patent portfolios, co-ownership and licensing
UPC ADR: Arbitration, Mediation and Expert Determination
UPC Key Documents – legislation and guidance
UPC Costs
Key contacts
Sebastian Moore
Partner, Head Intellectual Property, London and Milan
Laura Orlando
Managing Partner, Milan Office, Milan
Dr Ina vom Feld
Partner, Germany
Florian Schmidt-Bogatzky
Partner, Germany
Andrew Moir
Partner, Intellectual Property and Head of Cyber Security and Data, London
Jonathan Turnbull
Partner, London
Andrew Wells
Partner, London
Rachel Montagnon
Knowledge Counsel, London