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Date of decision
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23 August 1994
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Case number
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T 0964/92
- 3.3.1
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Application number
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88116669.8
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Title of the application
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1,4-Benzodioxane derivatives, process for preparing them,
pharmacological composition and use
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Applicant name
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Eisai Co., Ltd.
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Keywords
Inventive step (no - obvious alternative)
Common general knowledge
Identification of the technical problem and the closest state of
the art
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Catchwords:
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The question as to what extent a chemical structure can be
modified without causing major changes in its biological
activity is equally relevant to the question as to whether or
not it is credible that all members of a certain group of
chemical compounds solve a particular technical problem, e. g.
whether they can be fairly assumed to be useful in a
therapeutical treatment, and to the question of whether or not
such an activity can be expected on the basis of the state of
the art. If the answer to the former question can only be yes
with respect to considerations forming part of the common
general knowledge, then the question whether or not the solution
of the same technical problem by providing the same group of
compounds was obvious must be answered on the basis of the same
considerations (No. 2.8. of the reasons).
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