T 0741/91 (BON-3-acid/Ueno) du 22.09.1993
- Identifiant européen de la jurisprudence
- ECLI:EP:BA:1993:T074191.19930922
- Date de la décision
- 22 septembre 1993
- Numéro de l'affaire
- T 0741/91
- Requête en révision de
- -
- Numéro de la demande
- 82104427.8
- Classe de la CIB
- C07C 65/11
- Langue de la procédure
- Anglais
- Distribution
- Distribuées aux présidents et aux membres des chambres de recours (B)
- Téléchargement
- Décision en anglais
- Versions JO
- Aucun lien JO trouvé
- Autres décisions pour cet affaire
- -
- Résumés pour cette décision
- -
- Titre de la demande
- Process for preparation of 2-hydroxynaphathalene-3- carboxylic acid
- Nom du demandeur
- Kabushiki Kaisha Ueno Seiyaku Oyo Kenkyujo
- Nom de l'opposant
- Hoechst Aktiengesellschaft
- Chambre
- 3.3.01
- Sommaire
- -
- Dispositions juridiques pertinentes
- European Patent Convention Art 114(2) 1973European Patent Convention Art 52 1973European Patent Convention Art 56 1973
- Mots-clés
- inventive step (yes)
problem and solution
comparative test - not expertly worked
feature disclosed in old document disregarded among experts
late submitted material - evidence admitted (no) - Exergue
- 1. A proper application of the so-called "problem-solution- approach" requires the avoidance of formulating artificial and unrealistic technical problems (following T 0495/91; No. 3.3 of the Reasons).
2. All embodiments falling within a process claim have to meet the requirements of patentability set out in Articles 52 to 57 EPC (No. 4.2 of the Reasons).
3. To be relevant, it is sufficient for experiments, which aim at establishing that the promised result cannot be obtained over the whole range of a claim that they are carried out according to the Claim and with the normal experience of the man skilled in the art (Nos.4.2 and 4.3 of the Reasons).
4. An experiment which was not expertly carried out is not credible and sufficient evidence that a claim comprises embodiments which do not solve the technical problem (No. 4.5 of the Reasons). - Affaires citées
- T 0495/91
ORDER
For these reasons, it is decided that:
The appeal is dismissed.