T 1659/18 (Uses of AppA phytase/CORNELL RESEARCH FOUNDATION) of 25.2.2022

European Case Law Identifier: ECLI:EP:BA:2022:T165918.20220225
Date of decision: 25 February 2022
Case number: T 1659/18
Application number: 06075318.3
IPC class: C12N 15/55
C12N 9/16
A23K 1/165
A23L 1/015
Language of proceedings: EN
Distribution: D
Download and more information:
Decision text in EN (PDF, 253 KB)
Documentation of the appeal procedure can be found in the Register
Bibliographic information is available in: EN
Versions: Unpublished
Title of application: Overexpression of phytase genes in yeast systems
Applicant name: Cornell Research Foundation, Inc.
Opponent name: Kaesler Nutrition GmbH
Board: 3.3.08
Headnote: -
Relevant legal provisions:
European Patent Convention Art 113(2)
Keywords: Basis of decision - text or agreement to text withdrawn by patent proprietor
Basis of decision - patent revoked


Cited decisions:
T 2080/13
T 1182/17
Citing decisions:

Summary of Facts and Submissions

I. European patent no. 1 688 500 is based on European patent application No. 06075318.3 (the "patent application"), which is a divisional application of European patent application No. 99935340.2 published as International patent application WO 99/67398.

II. The opposition division took the view that the main request (claims as granted) and auxiliary request 1 comprised subject-matter extending beyond the content of the application as filed (Article 100(c) EPC). Auxiliary request 2 filed during the oral proceedings was held to comply with the EPC.

III. Appeals were lodged by the patent proprietor and opponent 01, referred to hereinafter as appellants I and II, respectively.

IV. With their statement of grounds of appeal, appellant I relied on a main request and auxiliary requests 1 and 2 that were all filed during the first instance proceedings.

V. With their statement of grounds of appeal, appellant II submitted arguments under added subject-matter, insufficiency of disclosure, lack of novelty and inventive step against the subject-matter of auxiliary request 2 as maintained by the opposition division.

VI. In reply, appellant I provided counter arguments to appellant II's submissions.

VII. Appellant II submitted with letter dated 12 January 2022 that they will neither attend nor be represented at the oral proceedings scheduled for 25 February 2022.

VIII. In a communication in preparation of oral proceedings, the parties were informed of the board's provisional, non-binding opinion.

IX. In reply, appellant I announced in the letter dated 22 February 2022 that they would not attend the oral proceedings and that they withdrew their approval of the text in which the European patent was granted. They further withdrew all requests on file.

X. Appellant II requested that the decision under appeal be set aside and that the patent be revoked.

Reasons for the Decision

1. Article 113(2) EPC requires that the European Patent Office decides upon the European patent only in the text submitted to it, or agreed, by the proprietor of the patent.

2. The patent proprietor (appellant I) explicitly disapproved the text of the patent without filing any other amended text on which further prosecution could be based.

3. Thus, appellant I unequivocally expresses that they are no longer interested in the continuation of the appeal proceedings and a decision on the appeal under Article 111 EPC.

4. It is established case law of the Boards of Appeal that in these circumstances, the proceedings are to be terminated by a decision ordering revocation of the patent, without going into the substantive issues (see, inter alia, T 2080/13 of 8 September 2017; T 1182/17 of 22 October 2020 and the case law cited in point 4 of the Reasons of this decision).


For these reasons it is decided that:

1. The decision under appeal is set aside.

2. The patent is revoked.

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