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Article L613-23-1 of the French Intellectual Property Code

Opposition may only be based on one or more of the following grounds:

1° The subject matter of the patent is not patentable under the terms of Articles L. 611-10, L. 611-11 and L. 611-13 to L. 611-19;

2° The patent does not set out the invention clearly and completely enough for a person skilled in the art to be able to carry it out;

>The subject matter of the patent is not sufficiently clear and complete for a person skilled in the art to be able to carry it out.
3° The subject matter of the patent extends beyond the contents of the application as filed or, where the patent has been granted on the basis of a divisional application, the subject matter extends beyond the contents of the original application as filed.
The opposition may relate to all or part of the granted patent.

Original in French 🇫🇷
Article L613-23-1

L’opposition ne peut être fondée que sur un ou plusieurs des motifs suivants :


1° L’objet du brevet n’est pas brevetable aux termes des articles L. 611-10, L. 611-11 et L. 611-13 à L. 611-19 ;


2° Le brevet n’expose pas l’invention de façon suffisamment claire et complète pour qu’un homme du métier puisse l’exécuter ;


3° L’objet du brevet s’étend au-delà du contenu de la demande telle qu’elle a été déposée ou, lorsque le brevet a été délivré sur la base d’une demande divisionnaire, l’objet s’étend au-delà du contenu de la demande initiale telle qu’elle a été déposée.


L’opposition peut porter sur tout ou partie du brevet délivré.

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