T 0198/84 (Thiochloroformates) of 28.2.1985

European Case Law Identifier: ECLI:EP:BA:1985:T019884.19850228
Date of decision: 28 February 1985
Case number: T 0198/84
Application number: 80104945.3
IPC class: C07C
Language of proceedings: DE
Distribution:
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Documentation of the appeal procedure can be found in the Register
Bibliographic information is available in: DE | EN | FR
Versions: OJ
Title of application: -
Applicant name: Hoechst
Opponent name: -
Board: 3.3.01
Headnote: A fairly broad range of numbers delimited by minimum and maximum values (in this case, >0 and <100 mol%) does not necessarily represent a disclosure, ruling out the selection of a subrange, of all the numerical values between these minimum and maximum values if the sub-range selected is narrow (in this case, 0.02 - 0.2 mol%) and sufficiently far removed from the known range illustrated by means of examples (in this case, 2 - 13 mol%). The sub-range is novel not by virtue of an effect which occurs only within it; but this effect permits the inference that what is involved is not an arbitrarily chosen specimen from the prior art but another invention (purposive selection).
Relevant legal provisions:
European Patent Convention 1973 Art 52(1)
European Patent Convention 1973 Art 54
European Patent Convention 1973 Art 56
Keywords: Novelty of a range of numbers
Selection - novelty of the selected range
Inventive step - subrange
Catchwords:

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Cited decisions:
-
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