EPO: Board of Appeal communication not sufficient for late filings

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

Cookies Settings

EPO: Board of Appeal communication not sufficient for late filings

As previously discussed in this column, the Boards of Appeal of the EPO have a few tools at their disposal, which they use to conduct EPO appeal proceedings efficiently. In particular, Article 12(2) of the Rules of Procedure of the Boards of Appeal (RPBA) requires appellants to provide their complete case in their statement of grounds of appeal or response to an appeal.

Using this Article, the Boards of Appeal can choose not to admit evidence or amendments to a patent that are filed late in appeal proceedings.

It has generally been accepted, however, that late-filed evidence or claim amendments could be admitted into appeal proceedings, if they are a response to a filing or argument made by another party. So, for example, if a patentee-appellant files new data with their appeal to support an invention, an opponent-appellant should be able to submit counter-evidence, for example in the form of experiments. In effect, a late-filing needs to be justified by a change in circumstances.

When summoning the parties to oral proceedings, a Board of Appeal will often provide a preliminary opinion on the issues to be discussed. When the summons to oral proceedings and preliminary opinion are issued, appellants can be motivated to file new arguments, evidence or claim amendments as a "response" to the Board's preliminary opinion.

In some cases, parties to appeal proceedings have attempted to justify a late-filed submission on the grounds that a preliminary opinion from the Board of Appeal is negative. However, the Case Law of the Boards of Appeal (Chapter IV, C-1.3.9) reminds parties that "The purpose of a communication of a board of appeal …is not an invitation to the parties to make further submissions or to file further requests (T 1459/11)."

In other words, the Boards of Appeal will not allow late-filed submissions to be justified solely for the reason that their preliminary opinion was negative in some respect. There has to be additional justification.

Decision T1459/11 quoted above is supported by another recent decision T0128/14, in which a patentee-appellant attempted to introduce new requests into proceedings, for the reason that the preliminary opinion from the Board was negative. This justification was not deemed sufficient.

It appears that justification for late-filing can only be based on actions of other parties, and not the EPO itself.

Edward J Farrington


Inspicos A/S

Kogle Allé 2

DK-2970 Hoersholm

Copenhagen, Denmark

Tel: +45 7070 2422

Fax: +45 7070 2423

info@inspicos.com

www.inspicos.com



more from across site and SHARED ros bottom lb

More from across our site

The firm launched a San Diego office earlier this month, but California investment and expansion is far from complete
The industry’s response to AI requires an unfamiliar ingredient as firms battle to shape their futures
The firm is looking beyond replacing recently departed talent, betting instead on senior leaders to strengthen and expand its patent litigation platform
Olga Partington, director in Sterne Kessler’s biotechnology and chemical practice group, shares why a patent's vulnerability peaks when it is young, rather than when it is most valuable, under the PTAB's new framework
IP experts gathered in San Francisco last week to discuss the changing global SEP landscape and new licensing models for AI infrastructure
SKW Schwarz partner Daniel Kendziur explains how new green claims rules are changing his workload and bringing him into direct contact with marketing, PR and government affairs teams
The government is targeting earlier resolution of SEP disputes while ruling out a standalone IPEC rate determination track and restrictions on injunctions
Ana Castedo, who brings a strong focus on patent litigation, will help build the firm’s IP litigation offering in Madrid
A former scientist, inventor and now a patent practice leader, Hanane Fathi Roswall shares her views on leadership, diversity, the rise of AI and the promise of the UPC
With rumours that a third IP judge could yet join the England and Wales High Court, we run through some potential names while practitioners outline the importance of a well-stocked bench
Gift this article