European Case Law Identifier: |
ECLI:EP:BA:2004:T059401.20040330 |
Date of decision: |
30 March 2004 |
Case number: |
T 0594/01 |
Application number: |
95907004.6 |
IPC class: |
C07C 29/10 |
Language of proceedings: |
EN |
Distribution: |
B |
Download and more information: |
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Title of application: |
Process for the preparation of alkylene glycols |
Applicant name: |
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. |
Opponent name: |
THE DOW CHEMICAL COMPANY |
Board: |
3.3.01 |
Headnote: |
- |
Relevant legal provisions: |
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Keywords: |
Main request, first to third auxiliary request: novelty (no) - upper end of a range value overlapping the margin of uncertainty inherently associated with a prior disclosed experimental value
Fourth and fifth auxiliary request: inventive step (no) obvious solution |
Catchwords: |
An experimental value in quantitative analytical chemistry cannot be dissociated from the margin of uncertainty attached to the measurement. When a specific experimental value is disclosed in an example of the prior art, seeking to distinguish the claimed subject-matter therefrom only in terms of an upper limit required to be "lower than" the experimental value must fail as the claimed subject-matter is still not distinguishable from the prior art within the margin of experimental error.
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Cited decisions: |
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Citing decisions: |
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