EPO: Enlarged Board to consider entitlement to priority

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

EPO: Enlarged Board to consider entitlement to priority

Sponsored by

inspicos-400px recrop.jpg
Patent, EPO

Jakob Pade Frederiksen of Inspicos P/S discusses a technical board of appeal referral that deals with the issue of entitlement to priority

In consolidated cases T 1513/17 and T 2719/19, a technical board of appeal has referred two questions to the Enlarged Board of Appeal (EBA) on the issue of entitlement to priority. 

More specifically, the EBA is to consider if the EPC confers jurisdiction on the EPO to determine whether a party validly claims to be a successor in title to a previously filed application, from which priority is claimed. Phrased differently, if party B claims priority from an application filed in the name of legal entity A, is the EPO competent to assess if party B has validly obtained the right to claim priority from party A?

The matter is pending before the EBA under as G1/22 and G2/22. If the EBA holds that the EPO indeed has the authority to determined whether the party claiming the priority is the successor in title to the previously filed application, the EBA is further asked if a party B can validly rely on the priority right claimed in a PCT application in the case where a PCT application designates party A as applicant for the US only and party B as applicant for other designated States and regions, including the EPO, and the PCT application claims priority from an earlier application filed in the name of party A.

Such issues relating to priority arise frequently, for example in respect of applications claiming US priorities, in respect of which the inventor is named as the applicant, whereas the subsequent application claiming the priority is filed in the name of a corporate entity. For PCT applications, oftentimes, the inventor is named as the applicant for the US only, and the corporate entity is named as applicant for all other jurisdictions.

One possible outcome of the new referral is that the EBA endorses the ‘joint applicants’ approach which suggests that the priority claim of a PCT application commonly filed by joint applicants is valid if any one of the applicants is properly entitled to the claim to priority. In any event, applicants and their representatives are well advised ensuring an unbroken chain of assignments between applicants in cases where the applicant named in the priority application is not identically named in the application claiming the priority. 

 

Jakob Pade Frederiksen

Partner, Inspicos P/S

E: jpf@inspicos.com

 

 

 

 

 

 

more from across site and SHARED ros bottom lb

More from across our site

Nick Redfearn and Khanh Nguyen of Rouse discuss Vietnam’s latest identification in the 2026 Special 301 Report and how the country is taking genuine steps to meet US expectations
Tatiana Campello reflects on 30 years of practising at the firm, and urges women IP attorneys to think beyond the day-to-day
A David v Goliath battle involving TikTok, and Via Licensing Alliance adding new members to its Voice Codec patent pool, were also among the top talking points
Latham & Watkins bolstered its IP litigation bench in California with the addition of Kieran Kieckhefer, as partner demand for trial-ready expertise shows no sign of slowing
With the launch of a new patent eligibility AI tool, Sterne Kessler is leading a growing movement of law firms taking AI development into their own hands
UPC cases are (very) gradually becoming more distributed across other local divisions outside Germany, which can only be good news for the pan-European forum
Clarification concerning jurisdictional reach and latest stats released by the court were also among the top talking points in recent weeks
Although unanimous decision by the top court clarifies several aspects of the honest concurrent use defence, practitioners say ambiguities remain
Tristan Sherliker says he hopes to solve an access to justice issue by making the automated court bundle tool free to use
The team, comprising two partners and one senior consultant, plans to offer “highly differentiated” services to clients
Gift this article