EPO: Enlarged Board confirms old disclaimer practice

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

Copyright © Legal Benchmarking Limited and its affiliated companies 2025

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

EPO: Enlarged Board confirms old disclaimer practice

The EPO's Enlarged Board of Appeal (EBA) recently issued its long-awaited decision G 1/16 relating to undisclosed disclaimers. The decision lays down under which circumstances the introduction during prosecution of a patent application before the EPO of a disclaimer not disclosed in the application as filed may be allowable under Article 123(2) EPC. The decision essentially confirms the standard defined in decision G 1/03 of 2004.

Decision G 1/16 is the third EBA decision dealing with disclaimers. In decision G 1/03 of 2004, the EBA ruled that an undisclosed disclaimer may be allowable, in spite of support in the application as filed, to restore novelty over prior art cited under Article 54(3) EPC (i.e. a prior European patent application not published at the filing date of the application under examination), to restore novelty over an "accidental" anticipation, or to remove subject-matter excluded from patentability for non-technical reasons.

Later on, in 2011, the EBA scrutinized the allowability of disclaimers which do in fact have a basis in the application as filed. In the decision dealing with that issue, G 2/10 of 2011, the EBA arrived at the conclusion that a disclosed disclaimer is allowed only if the subject-matter remaining in the claim after the introduction of the disclaimer is directly and unambiguously derivable from the application as filed. It did, however, remain unclear whether or not this standard should apply also to undisclosed disclaimers.

The uncertainty to this effect has now been removed by decision G 1/16, according to which the "directly and unambiguously derivable" criterion – the so-called "gold standard" – does not apply to undisclosed disclaimers. Rather, the EBA expressly endorses the practice developed in decision G 1/03, whilst underlining that an undisclosed disclaimer may not provide a technical contribution, notably in relation to the assessment of inventive step or for the question of sufficiency of disclosure.

frederiksen.jpg

Jakob Pade Frederiksen


Inspicos P/SKogle Allé 2DK-2970 HoersholmCopenhagen, DenmarkTel: +45 7070 2422Fax: +45 7070 2423info@inspicos.comwww.inspicos.com

more from across site and SHARED ros bottom lb

More from across our site

As Marshall Gerstein celebrates its 70-year anniversary, Jeffrey Sharp, managing partner, reflects on lessons that shaped both his career and the firm’s success
News of two pharma deals involving Novo Nordisk and GSK and a loss for Open AI were also among the top talking points
Howard Hogan, IP partner at Gibson Dunn, says AI deepfakes are driving lawyers to rethink how IP protects creativity and innovation
Vivien Chan joins us for our ‘Women in IP’ series to discuss gender bias in the legal profession and why the business model followed by law firms leaves little room for women leaders
Partner Jeremy Hertzog explains how his team worked through a huge amount of disclosure from Adidas and what victory means for the firm
Evarist Kameja and Hadija Juma at Bowmans explain why a new law in Tanzania marks a significant shift in IP enforcement
In the wake of controversy surrounding Banksy’s recent London mural, AJ Park’s Thomas Huthwaite and Eloise Calder delve into the challenges street artists face in protecting their works and rights
Alex Levkin, founder of IPNote, discusses reshaping the filing industry through legal tech, and why practitioners’ advice should stretch beyond immediate legal needs
Cohausz & Florack, together with Krieger Mes & Graf von der Groeben, has taken action against Amazon on behalf of three VIA LA licensors
In the fourth episode of a podcast series celebrating the tenth anniversary of IP Inclusive, we discuss unconscious bias in the IP workplace and how to address it
Gift this article