T 0526/92 (Lubricating oil additive/BP) of 25.10.1994

European Case Law Identifier: ECLI:EP:BA:1994:T052692.19941025
Date of decision: 25 October 1994
Case number: T 0526/92
Application number: 83302734.5
IPC class: C10M 129/40
Language of proceedings: EN
Distribution: B
Download and more information:
Decision text in EN (PDF, 688 KB)
Documentation of the appeal procedure can be found in the Register
Bibliographic information is available in: EN
Versions: Unpublished
Title of application: Lubricating oil additives
Applicant name: EXXON RESEARCH AND ENGINEERING COMPANY
Opponent name: BP Chemicals Limited
Board: 3.3.01
Headnote: -
Relevant legal provisions:
European Patent Convention 1973 Art 123(2)
Keywords: Amendments - added subject-matter - amendment extending subject- matter of the application as filed
Creation of an originally not disclosed range
Catchwords:

If values of a parameter are only given in the examples, without the significance of this parameter becoming evident from the original specification, no range must be arbitrarily formed, which is open ended at one side and has one limit selected from the examples (5.3.1, 5.3.6).

Cited decisions:
G 0001/93
T 0004/80
T 0433/86
T 0343/90
Citing decisions:
T 0068/93
T 0522/96
T 0323/97
T 1066/98
T 0025/99
T 0399/99
T 0664/00
T 0931/00
T 1004/01
T 0566/03
T 0071/06
T 1790/06
T 2234/14

Source: http://www.epo.org/law-practice/case-law-appeals/recent/t920526eu1.html

Date retrieved: 17 May 2021

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