| European Case Law Identifier: | ECLI:EP:BA:1994:T085291.19940606 | ||||||||
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| Date of decision: | 06 June 1994 | ||||||||
| Case number: | T 0852/91 | ||||||||
| Application number: | 86308053.7 | ||||||||
| IPC class: | C07D 309/08 | ||||||||
| Language of proceedings: | EN | ||||||||
| Distribution: | B | ||||||||
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| Title of application: | Medicinal indole and indazole keto sulphone derivatives | ||||||||
| Applicant name: | ICI AMERICAS INC. | ||||||||
| Opponent name: | - | ||||||||
| Board: | 3.3.01 | ||||||||
| Headnote: | - | ||||||||
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| Keywords: | Inventive step (yes) Structural similarity of chemical compounds Existence of common general knowledge regarding equivalency contested |
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| Catchwords: |
To deny inventive step for novel chemical compunds because of their "structural similarity" to known chemical compounds would be justified, if the skilled person knew, be it from common general knowledge, or from some specific disclosure, that the existing structural differences of the chemical compunds concerned were so small that they would have no essential bearing on those properties which are important for solving the technical problem underlying the invention (No. 8.2) |
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Source: http://www.epo.org/law-practice/case-law-appeals/recent/t910852eu1.html
Date retrieved: 17 May 2021