T 0203/93 (MITSUBISHI/Wafer) of 1.9.1994

European Case Law Identifier: ECLI:EP:BA:1994:T020393.19940901
Date of decision: 01 September 1994
Case number: T 0203/93
Application number: 83307967.6
IPC class: H01L 33/00
Language of proceedings: EN
Distribution: B
Download and more information:
Decision text in EN (PDF, 1 MB)
Documentation of the appeal procedure can be found in the Register
Bibliographic information is available in: EN
Versions: Unpublished
Title of application: Epitaxial wafer for use in the production of an infrared LED
Applicant name: MITSUBISHI MONSANTO CHEMICAL CO.LTD.
Opponent name: Siemens AG
TEMIC TELEFUNKEN microelectronic GmbH
KABUSHIKI KAISHA TOSHIBA
Board: 3.4.01
Headnote: -
Relevant legal provisions:
European Patent Convention 1973 Art 56
Keywords: Inventive step (yes) - secondary indicia - age of documents
Catchwords:

Use of known means not foreseeable to solve objective problem.

Known means could have been used, but would not have been used.

Time factor of over ten years an additional indication supporting conclusion that claimed use of known means was not obvious.

Cited decisions:
-
Citing decisions:
T 1028/02

2 references found.

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Case Law Book: I Patentability