T 0946/00 (Polyisobutylphenols/CHEVRON) of 24.11.2004

European Case Law Identifier:

ECLI:EP:BA:2004:T094600.20041124

Date of decision:

24 November 2004

Case number:

T 0946/00

Application number:

94905459.7

IPC class:

C07C 37/14

Language of proceedings:

Distribution:

Download and more information:

Decision text in EN (PDF, 82Â KB)
Documentation of the appeal procedure can be found in the Register
Bibliographic information is available in:	EN
Versions:	Unpublished

Title of application:

Process for the preparation of polyisobutyl hydroxyaromatics

Applicant name:

Chevron Chemical Company LLC

Opponent name:

Ethyl Corporation
The Lubrizol Corporation

Board:

3.3.01

Headnote:

Relevant legal provisions:

European Patent Convention 1973 Art 54
European Patent Convention 1973 Art 56
European Patent Convention 1973 Art 123(2)
European Patent Convention 1973 Art 123(3)

Keywords:

Main and auxiliary request: novelty (yes) - prior art silent about distinguishing feature - no implicit disclosure - inadequate evidence - multiple selection; inventive step (no) - obvious to try - no deterrent teaching in the art

Catchwords:

Cited decisions:

T 0002/81
T 0099/85
T 0249/88
T 0800/91
T 1053/93
T 0068/95

Citing decisions:

T 0552/04
T 1451/08
T 0830/09
T 1758/10

Source: http://www.epo.org/law-practice/case-law-appeals/recent/t000946eu1.html

Date retrieved: 17 May 2021