European Patent Office

T 0296/87 (Enantiomers) du 30.08.1988

Identifiant européen de la jurisprudence
ECLI:EP:BA:1988:T029687.19880830
Date de la décision
30 août 1988
Numéro de l'affaire
T 0296/87
En ligne le
31 octobre 1988
Requête en révision de
-
Numéro de la demande
78101792.6
Classe de la CIB
C07C 59/58
Langue de la procédure
Allemand
Distribution
Publiées au Journal officiel de l'OEB (A)
Téléchargement
-
Autres décisions pour cet affaire
-
Résumés pour cette décision
-
Titre de la demande
-
Nom du demandeur
Hoechst
Nom de l'opposant
-
Chambre
3.3.01
Sommaire

A chemical substance is held to be new if it differs from a known substance in a reliable parameter. The configuration is such a parameter. If the prior art describes specific racemates in more detail by reference to their structural formulae, that alone does not disclose their specific configurations (here D- enantiomers); see points 6 and 7 of the Reasons (in conjunction with T 12/81 "Diastereomers", T 181/82 "Spiro compounds" and T 7/86 "Xanthines" in OJ EPO 1982, 296; 1984, 401; and 1988, 381 respectively).

Mots-clés
New version of claims in opposition proceedings
Formulation attempt, not partial surrender
Novelty (yes) - enantiomers of known racemates
Inventive step (no)
Quantitatively surprising result of obvious tests (activity of enantiomer more than double that of racemate)
Objection of insufficient disclosure disregarded - not in due time e time
Exergue
-
Affaires citées
-

ORDER

For these reasons, it is decided that:

1. The contested decision is set aside.

2. The appeal is dismissed in respect of the appellants' main request.

3. The case is remitted to the department of first instance with the instruction to maintain the European patent on the basis of the claims set out in the subsidiary request and a description which has yet to be adapted.