English courts remain a forum for deciding international IP disputes post-Brexit

Managing IP is part of Legal Benchmarking Limited, 1-2 Paris Gardens, London, SE1 8ND

Copyright © Legal Benchmarking Limited and its affiliated companies 2026

Accessibility | Terms of Use | Privacy Policy | Modern Slavery Statement

English courts remain a forum for deciding international IP disputes post-Brexit

Sponsored by

twobirds-400px.jpg
nick-fewings-njd4le853i-unsplash.jpg

Peter Brownlow and Mark Hilton of Bird & Bird consider the impact of Brexit on international IP cases heard in England

For more than 200 years, the courts of England and Wales have been hearing international commercial disputes. Historically, this was due to the UK being a nation with considerable international trade, and more recently because English law has often been chosen as the law to govern international commercial contracts.

With respect to IP disputes, English courts have shown a willingness to hear claims based on foreign IP rights. The jurisdictional basis for this remains unaffected by Brexit and the fact the UK is no longer bound by the Brussels Regulation on Jurisdiction and Enforcement may make such claims more likely in the future.

A well-known example of this willingness is the decision of the UK Supreme Court in 2011 in a dispute over ownership of copyright in the design of the Stormtrooper helmets used in the film Star Wars. In that case, the Supreme Court decided that so long as the English court had in personam jurisdiction over the defendant, then the English court had jurisdiction to decide whether there had been infringement of US copyright.

Another example in the field of patent law is the judgment in Actavis, where the English court accepted jurisdiction over a claim for declarations of non-infringement in relation to, not only the UK designation of a European patent, but also the French, German, Spanish and Italian designations.

The procedures for deciding issues of foreign law in the English court have developed over many years and involve experts in the relevant foreign law providing evidence to the court, as to the foreign law, allowing the court to then apply that law to the facts of the case.

There has been some suggestion that Brexit will make it more difficult or impossible to enforce English court IP judgments against defendants who are based outside the UK. However, in practice very little has changed. The position remains the same as it was pre-Brexit for defendants based in jurisdictions outside the EU, such as the US.

For defendants domiciled in an EU member state, the practical effect of Brexit on the enforcement of English court IP judgments is likely to be limited. This is for a number of reasons including that substantial companies are unlikely to want to breach an English court order (even in respect of non-injunctive monetary relief), given that sanctions could be imposed on their activities in the UK or on members of their management visiting the UK.

In addition, if the claim is in relation to a contract which contains an exclusive jurisdiction clause designating the England and Wales courts, EU member state courts are required to enforce any judgment of the English court under the The Hague Convention on Choice of Court Agreements.

Brexit has led people to question whether there will be fewer international IP cases heard in the English courts. There will be a wait for a few years for the answer, although given the approach of the English courts in the past and the advantages of the forum, it would not be surprising if the volume increased post-Brexit.

For a more in-depth look at this see the longer article here.

 

Peter Brownlow

Partner, Bird & Bird
E: peter.brownlow@twobirds.com
 
Mark Hilton
Partner, Bird & Bird
E: mark.hilton@twobirds.com
 

more from across site and SHARED ros bottom lb

More from across our site

While the firm lost several litigators this month, Winston & Strawn is betting that its transatlantic merger will strengthen its IP practice
In other news, Ericsson sought a declaratory judgment against Acer and Netflix filed a cease-and-desist letter against ByteDance over AI misuse
As trade secret filings rise due to AI development and economic espionage concerns, firms are relying on proactive counselling to help clients navigate disputes
IP firm leaders share why they remain positive in the face of falling patent applications from US filers, and how they are meeting a rising demand from China
The power of DEI to swing IP pitches is welcome, but why does it have to be left so late?
Mathew Lucas has joined Pearce IP after spending more than 25 years at Qantm IP-owned firm Davies Collison Cave
Exclusive survey data reveals a generally lax in-house attitude towards DEI, but pitches have been known to turn on a final diversity question
Managing IP will host a ceremony in London on May 1 to reveal the winners
Abigail Wise shares her unusual pathway into the profession, from failing A-levels to becoming Lewis Silkin’s first female IP partner
There are some impressive AI tools available for trademark lawyers, but law firm leaders say humans can still outthink the bots
Gift this article