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Date of decision
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14 September 1993
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Case number
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T 0246/91
- 3.3.1
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Application number
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85900903.7
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Title of the application
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Gel and process for retarding fluid flow
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Applicant name
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Oxy USA Inc.
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Keywords
Inventive step (acknowledged, after amendment)
Definition of the technical problem
Reasonable number of claims; undue burden on public if number is
large
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Catchwords:
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What is a reasonable number of claims (Rule 29(5) EPC) depends
on the facts and circumstances of each particular case. In the
present application, to construe 157 claims imposes a severe and
undue burden on the public (No. 7.2).
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