2. Le droit d'être entendu prévu à l'article 113(1) CBE

In R 11/23 the petition was based on Art. 112a(2)(c) EPC, i.e. the fundamental violation of Art. 113(1) EPC. It was alleged that the clarity objection against auxiliary request 8, which had led to the board's finding that said request had been unallowable, had never been discussed, neither in the written nor in the oral proceedings, but had been brought forward only in the board's written decision..

Specifically, the petitioner argued that there had been two distinct clarity objections against claim 1 of auxiliary request 8: the alleged lack of clarity regarding what "maintaining currents in an allowable range" meant (the "allowable current range objection") and the alleged lack of information on which components were to be protected by the protective circuit (the "unspecified components objection"). The petitioner acknowledged that it had been heard in the context of the "allowable current range objection" but it asserted that it had been confronted with the "unspecified components objection" only when reading the written decision.

The Enlarged Board held that it did not see any clear indication that the "unspecified components objection" had been raised implicitly, for example as an aspect of an overarching clarity objection..

The Enlarged Board agreed with the petitioner in that it was not sufficient for a relevant specific aspect such as the "unspecified components" to be covered or encompassed by a broader clarity objection that had been discussed if the parties had not been aware of the specific aspect during the discussion. In this context, opponent 2 had referred to paragraph [0018] of the patent which had been mentioned in point 7.4 of the decision under review. The Enlarged Board could not see that such a reference implied that the "unspecified components objection" had been discussed. Furthermore, it did not regard the wording of point 7.5 of said decision as evidence that the "unspecified components objection" had been discussed, because it was not clear whether the phrase "as the appellants and the infringer [sic] correctly argue" was linked to the "unspecified components objection".

According to the Enlarged Board, since it had no power or ability to investigate further whether other facts or indications might suggest that the petitioner could be aware that the board had had doubts about the specific aspect of clarity (namely, the "unspecified component" issue), it had to rely on the parties' submissions in this respect. In the absence of any such indication, it was not for the party alleging a breach of its right to be heard to prove that there had been no such facts or indications (see R 15/11). Any doubts remaining on whether a decision under review was based upon facts and considerations on which the parties had had an opportunity to comment must be solved to the affected party's benefit (see R 2/14).

For these reasons, the Enlarged Board concluded that the "unspecified components objection" had not been discussed during appeal proceedings and its use in the written decision had therefore come as a surprise to the petitioner.

As in the appeal case underlying R 2/14, a broader objection had been discussed during appeal proceedings in the present case but not the specific aspect encompassed by the broader objection that turned out to be decisive for the case. In such cases, the "grounds" as referred to in Art. 113(1) EPC may have a more specific meaning than a broader objection like "lack of clarity" or "insufficiency of disclosure". In the present case, it was irrelevant that the broader clarity objection had been discussed. The critical aspect, namely the question of which components needed to be protected, had not been discussed during the appeal proceedings and the board's conclusion on this aspect had come as a surprise to the petitioner.

The "unspecified components objection" which had not been discussed during the appeal proceedings eventually was the reason for the board's finding that the patent was invalid. The Enlarged Board concluded that a fundamental violation of Art. 113(1) EPC had occurred. The decision under review was thus set aside and the proceedings before a board reopened..

On the latter, the Enlarged Board, referring to Art. 112a(5) and R. 108(3) EPC, explained that the board responsible for the reopened proceedings was not automatically the board which had issued the decision underlying the review proceedings. Rather, the allocation of the reopened proceedings had to be determined in accordance with the business distribution scheme as applicable when the proceedings were reopened.

Der Antrag auf Überprüfung in R 7/22 wurde darauf gestützt, dass die zu überprüfende Entscheidung in mehrfacher Hinsicht mit einem schwerwiegenden Verfahrensmangel behaftet sei, und – ebenfalls in mehrfacher Hinsicht – ein schwerwiegender Verstoß gegen Art. 113 EPÜ vorliege.

Bei der Prüfung der Begründetheit des Überprüfungsantrags bezüglich der geltend gemachten Verfahrensmängel gemäß Art. 112a (2) d) EPÜ erinnerte die Große Beschwerdekammer (GBK) daran, dass die in R. 104 EPÜ nicht genannten Verfahrensmängel nicht als schwerwiegende Verfahrensmängel im Sinne des Art. 112a (2) d) EPÜ gelten. Die Antragstellerin hatte sich aber weder auf das Übergehen eines Antrags auf mündliche Verhandlung (R. 104 a) EPÜ) noch eines sonstigen relevanten Antrags im Verfahren (R. 104 b) EPÜ) berufen. Dementsprechend betrachtete die GBK den Überprüfungsantrag bezüglich dieser geltend gemachten Verfahrensmängel als offensichtlich unbegründet.

Im Rahmen der Prüfung der Begründetheit des Überprüfungsantrags im Hinblick auf die geltend gemachten Verfahrensmängel nach Art. 112a (2) c) EPÜ befasste sich die GBK mit den beanstandeten Verstößen gegen Art. 113 (1) EPÜ im Zusammenhang mit der angekündigten mündlichen Verhandlung in Präsenz und derer tatsächlicher Durchführung als Videokonferenz. Dabei betonte die GBK unter anderem Folgendes:

In G 1/21 hat die GBK entschieden, dass die Durchführung einer mündlichen Verhandlung als Videokonferenz grundsätzlich mit dem Recht auf rechtliches Gehör vereinbar ist, und in R 12/22 hat die GBK das ausführlich dargestellt. Im vorliegenden Fall hatte die Antragstellerin sich darauf beschränkt zu rügen, die im Fall G 1/21 gesetzten, sehr engen Voraussetzungen für die Durchführung einer mündlichen Verhandlung als Videokonferenz hätten nicht vorgelegen. Sie hatte keine konkreten Umstände behauptet, wodurch ihr die Ausübung ihres Rechts auf rechtliches Gehör im Beschwerdeverfahren verweigert wurde. Für die GBK waren auch keine derartigen Umstände ersichtlich. Eine allgemeine Beanstandung zu Beginn der Verhandlung, die Voraussetzungen für die Durchführung der mündlichen Verhandlung als Videokonferenz seien nicht gegeben, genügt aus den vorgenannten Gründen (wonach eine mündliche Verhandlung in Form einer Videokonferenz grundsätzlich mit dem Recht auf rechtliches Gehör vereinbar ist) nicht. Damit liegt in der Durchführung der mündlichen Verhandlung als Videokonferenz offensichtlich kein Gehörsverstoß.

Darüber hinaus befand die GBK, dass anders als im Falle der Ermessensausübung beim Thema Zulassung, eine unzutreffende Ermessensausübung zugunsten der Durchführung einer mündlichen Verhandlung als Videokonferenz mangels Einfluss auf das Recht auf rechtliches Gehör keinen Verstoß gegen dieses Recht begründen kann, wenn – wie hier – ein konkreter Mangel der Videokonferenz während derselben nicht behauptet worden war. Die Beteiligten waren im Übrigen zur Frage der Durchführung der mündlichen Verhandlung als Videokonferenz gehört worden, so dass auch insofern kein Gehörsverstoß vorlag.

In Bezug auf die durch die Antragstellerin geltend gemachten Mängel in der Begründung der zu überprüfenden Entscheidung verwies die GBK auf die in R 3/15, R 8/15, R 8/19, R 10/20 und R 12/22 formulierten relevanten Grundprinzipien. Sie erinnerte unter anderem daran, dass eine widersprüchliche Begründung nur dann beanstandet werden kann, wenn die Widersprüche gleichbedeutend damit sind, dass die Kammer das Vorbringen in den Entscheidungsgründen nicht behandelt und dieses objektiv betrachtet entscheidend für den Ausgang des Falles war. Ebenso wie die objektiv entscheidende Bedeutung für den Ausgang des Falles sich aufdrängen muss, muss sich auch aufdrängen, dass die widersprüchliche Begründung gleichbedeutend ist mit einer Nicht-Begründung, indem sie beispielsweise völlig konfus ist (R 12/22).

Zum Argument der Antragstellerin, die Begründungsmängel seien für den Fachmann augenfällig, befand die GBK, dass es sich bei der relevanten Person, der eklatante Begründungsmängel ins Auge springen müssen, um den Durchschnittsleser und nicht den Fachmann handelt.

Der Antrag auf Überprüfung wurde teilweise als offensichtlich unzulässig und im Übrigen als offensichtlich unbegründet verworfen.

In the proceedings leading to the decision under appeal in T 1588/22, the examining division had issued a communication on 27 July 2021. The last paragraph of the communication had read as follows: "The applicant may choose to amend the claim set as previously proposed by the examining division (see the text intended for grant dated 01.06.2021) and thereby lead to the grant of the present application. They may also choose to submit further arguments along with a new claim set satisfying the requirements of EPC. In the latter case the applicant is kindly reminded that the examination procedure would continue with oral proceedings for the sake of efficiency and better communication." On 6 November 2021 the applicant (appellant) had filed a reply to the communication and a new set of claims. On 24 November 2021, the applicant had filed a new set of claims identical to the set of claims filed on 6 November 2021. Upon an enquiry by the applicant as to when the EPO would deliver the next communication, the examining division had issued on 7 December 2021 a communication and stated that it would issue a communication within two months. On 5 January 2022, the examining division issued a decision refusing the application based on the claims filed on 24 November 2021.

The board recalled that in line with the established case law of the boards, the principle of the protection of legitimate expectations applied in proceedings pursuant to the EPC. Its application to procedures before the EPO implied that measures taken by the EPO should not violate the reasonable expectations of parties to such proceedings (G 2/97). It required that communications addressed to applicants be clear and unambiguous, i.e. drafted in such a way as to rule out misunderstandings on the part of a reasonable addressee (J 3/24).

According to the board the examining division's announcement in its communication of 27 July 2021, that the appellant "may also choose to submit further arguments along with a new claim set satisfying the requirements of EPC. In the latter case the applicant is kindly reminded that the examination procedure would continue with oral proceedings for the sake of efficiency and better communication" appeared nonsensical or at least misleading in the given circumstances. The only way for the appellant to make sense of this statement was to assume that it referred to a situation where a new claim set was filed that would not meet the requirements of the EPC, in which case the proceedings would be continued with the holding of oral proceedings. This created the legitimate expectation on the appellant's part that, after having filed a new set of claims on 6 November 2021 (refiled on 24 November 2021), these would either be found allowable or oral proceedings would be held and that, in the latter case, the appellant would have the opportunity to provide, during the oral proceedings, submissions on the allowability of this set of claims. The appellant could not have expected as the next action of the examining division that a decision refusing the patent application would be issued. According to the board, this was exacerbated by the communication of 7 December 2021 informing that the examining division would "supply a communication within 2 months".

The board inferred from these events that instant issuance of the decision refusing the application had been a surprise for the appellant. Thus, the principle of the protection of legitimate expectations had not been observed in the case at hand.

The board concluded that in view of the legitimate expectations created by the examining division, the appellant had had to assume that she would be given a further opportunity to provide counterarguments or submit amendments prior to any decision to refuse her application. The board held that the issuance of the decision refusing the patent application without holding oral proceedings or issuing a further communication as announced had thus had the effect of depriving the appellant of any such further possibility to provide comments. Consequently, the appellant's right to be heard had been violated (Art. 113(1) EPC). The examining division's decision to refuse the application thus constituted a substantial procedural violation.

The board decided to set aside the appealed decision and to remit the case to the examining division for further prosecution. Furthermore, it considered reimbursement of the appeal fee under R. 103(1)(a) EPC equitable.