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 reveals how its litigation strategies informed the arguments that took Masimo’s judgment past $818 million
The firm was rebuilding its IP practice through a string of patent hires and a Texas expansion, but its dissolution has put the newly built talent back into the market
AI can exploit longstanding gaps in copyright protection at remarkable speed, but EU law still provides tools to fight back, says Simon Hembt at Bird & Bird
The firm has tapped a local patent trio to establish a foothold in the market and broaden its national presence
New Asia-Pacific IP head Jonathan Chu is eyeing opportunities arising from Chinese technology licensing, overseas enforcement and increasingly IP-heavy cross-border deals
Europe’s largest intellectual property convention and trade fair is back: IP Service World 2026 takes place in Munich from November 23–25 – the 16th edition, with 1,400-plus attendees from 55-plus nations, 100-plus speakers, and 100-plus exhibitors. Three days. Two focused areas. One IP marketplace.
Mehmet Gün and Uğur Aktekin discuss four decades of change in Türkiye’s legal market, the firm’s commitment to independence and the challenge of building an institution that can outlast its founders
Boehringer Ingelheim has instructed a team from Kirkland, while Teva is being represented by Pinsent Masons
The Delhi High Court’s latest directions offer an opportunity to move beyond remedies against bad-faith registrations and address how suspicious applications are identified in the first place, says Fatima Baig at Lexlinc
Camilla Hamrin describes how the acquisition by Acapo Onsagers will impact Bergenstråhle’s trademark practice – and reflects on changes she has seen over 30 years in IP
Gift this article