G 0001/93 (Limiting feature) of 2.2.1994

European Case Law Identifier: ECLI:EP:BA:1994:G000193.19940202
Date of decision: 02 February 1994
Case number: G 0001/93
Referral: T 0384/91
Application number: 82306422.5
IPC class: G02B 5/00
B29D 11/10
Language of proceedings: EN
Distribution: A
Download and more information:
Decision text in EN (PDF, 863.662K)
Documentation of the appeal procedure can be found in the Register
Bibliographic information is available in: EN
Versions: OJ | Published
Title of application: Method for the manufacture of a thin optical membrane
Applicant name: Adv. Semiconductor
Opponent name: Mitsui Petrochemical
Board: EBA
Headnote: 1. If a European patent as granted contains subject-matter which extends beyond the content of the application as filed in the sense of Article 123(2) EPC and which also limits the scope of protection conferred by the patent, such patent cannot be maintained in opposition proceedings unamended, because the ground for opposition under Article 100(c) EPC prejudices the maintenance of the patent. Nor can it be amended by deleting such limiting subject-matter from the claims, because such amendment would extend the protection conferred, which is prohibited by Article 123(3) EPC. Such a patent can, therefore, only be maintained if there is a basis in the application as filed for replacing such subject-matter without violating Article 123(3) EPC.
2. A feature which has not been disclosed in the application as filed but which has been added to the application during examination and which, without providing a technical contribution to the subject-matter of the claimed invention, merely limits the protection conferred by the patent as granted by excluding protection for part of the subject-matter of the claimed invention as covered by the application as filed, is not to be considered as subject-matter which extends beyond the content of the application as filed in the sense of Article 123(2) EPC. The ground for opposition under Article 100(c) EPC therefore does not prejudice the maintenance of a European patent which includes such a feature.
Relevant legal provisions:
European Patent Convention 1973 Art 123(2)
European Patent Convention 1973 Art 123(3)
Keywords: Conflicting requirements of Article 123, paragraphs (2) and (3) EPC
Catchwords:

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Cited decisions:
G 0003/89
T 0231/89
Citing decisions:
G 0002/98
G 0001/03
G 0002/03
G 0001/05
G 0001/06
G 0002/10
G 0001/16
T 0384/91
T 0526/92
T 0802/92
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