T 0644/24 - Amendments and new grounds of opposition

Key points

• The Board, in the headnote, in translation: "If the grounds for opposition under Article 100(b) EPC and Article 100(c) EPC were not raised in the opposition proceedings and the patent proprietor does not consent to their examination in the appeal proceedings, the patent may not be examined in its entirety for insufficient disclosure and added subject-matter in the appeal proceedings if the patent is amended in the opposition or appeal proceedings, but only insofar as the amendment brings about the insufficient disclosure or added subject-matter".
• This concerns the details of G10/91 hn. 3 about new grounds of opposition in appeal. 
• As far as Art. 100(c) is concerned, the current headnote is the same as the holding of T 693/98.
• Concerning Art. 110(b), the point is obiter, it seems. Still, the point seems valid, and the Board's reasoning is interesting (very German in the degree of detail, but good).

EPO 

The link to the decision is provided after the jump.

https://www.epo.org/en/boards-of-appeal/decisions/t240644du1