T 0525/90 (Pigments/TIOXIDE) of 17.6.1992

European Case Law Identifier: ECLI:EP:BA:1992:T052590.19920617
Date of decision: 17 June 1992
Case number: T 0525/90
Application number: 82305580.1
IPC class: C09C 1/36
Language of proceedings: EN
Distribution:
Download and more information:
Decision text in EN (PDF, 977 KB)
Documentation of the appeal procedure can be found in the Register
Bibliographic information is available in: EN
Versions: Unpublished
Title of application: Titanium dioxide pigments and their preparation
Applicant name: TIOXIDE GROUP PLC
Opponent name: 01) KRONOS TITAN-GmbH, Leverkusen
02) BAYER AG; Leverkusen
Board: 3.3.02
Headnote: -
Relevant legal provisions:
European Patent Convention 1973 Art 54
European Patent Convention 1973 Art 56
Keywords: Inventive step (no)
Catchwords:

Prior art process not inevitably leading to the claimed product - absence of convincing evidence - no reversal of the burden of proof

Inventive step (no) - obvious to try in view of the disclosed improvement

Cited decisions:
T 0127/85
T 0023/86
T 0172/87
T 0109/91
Citing decisions:
G 0003/14
T 0506/99
T 1188/00
T 0515/04
T 0762/04
T 1162/07
T 0879/08
T 0976/08

10 references found.

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Offical Journal of the EPO

Case Law Book: III Amendments

Case Law of the Enlarged Board

General Case Law