Key points
- In this case, the opponents requested to present their arguments for inventive step during the oral proceedings before the Board, after a finding would have been announced on novelty of the claim over D5, the document also to be used as closest prior art. The proprietor had already defended novelty of the claim over D5 with its Statement of response.
- The Board does not admit the inventive step attack, as being late filed. The Board does not assess prima facie relevance of the new argument.
- The Board: " The request of submitting a line of attack on inventive step starting from D5 and combining it with D6, not only constitutes a substantial amendment to the Opponent's case, which accordingly is only admissible at the Board's discretion pursuant to Article 13(1) RPBA, but also constitutes an unjustified belated response to the Patentee's arguments on novelty in respect of D5. In particular, it is not justified to wait for the Board to come to a conclusion on novelty, [] for amending the Opponent's case."
T 0988/14 -
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Reasons for the Decision
8.1 The Opponent then requested that a new line of attack on inventive step be discussed, based on the combination of documents D5 and D6.
The Board, after having heard the respective arguments of the parties, in particular after discussion of the patent proprietor's objection not to admit the new line of attack because filed late, decided to exercise its discretionary power according to Article 13(1) RPBA (Rules of Procedure of the Boards of Appeal) not to admit the Opponent's new line of attack on inventive step against claim 1 of auxiliary request 5 based on D5 and D6.
8.2 It is firstly noted that auxiliary requests 4 and 5 were already submitted during opposition proceedings and D5 was already submitted with the notice of opposition. In opposition proceedings, however, the Opponent never relied on D5 to attack novelty of the claimed subject-matter, or as the starting point for an attack on inventive step. In fact, the objection of lack of novelty of claim 1 of auxiliary request 4 (this claim being, as stated above, identical to claim 1 of auxiliary request 5) over D5 was only submitted with the Opponent's statement of grounds of appeal. In its reply thereto, the Patentee submitted related arguments on novelty over D5. The Opponent, however, did not submit in response any arguments in writing, in case D5 would not be prejudicial to the novelty of the subject-matter of claim 1, but requested to submit its case on inventive step starting from D5, and combining it with D6, only during the oral proceedings, after the Chairman had ascertained that everything in respect of novelty and inventive step of claim 1 had been said and after the Board had come to a conclusion on novelty over D5.
Under these circumstances, the request of submitting a line of attack on inventive step starting from D5 and combining it with D6, not only constitutes a substantial amendment to the Opponent's case, which accordingly is only admissible at the Board's discretion pursuant to Article 13(1) RPBA, but also constitutes an unjustified belated response to the Patentee's arguments on novelty in respect of D5. In particular, it is not justified to wait for the Board to come to a conclusion on novelty, based exclusively on the Patentee's arguments that were already presented in writing and thoroughly discussed, for amending the Opponent's case. This rather amounts in finding a belated way of tackling with the conclusion of the Board.