Article 100 – Grounds for opposition - The European Patent Convention, Convention on the Grant of European Patents – (European Patent Convention), Part V – Opposition and limitation procedure

Article 100[ 105 ]
Grounds for opposition

Opposition may only be filed on the grounds that: 
the subject-matter of the European patent is not patentable under Articles 52 to 57;
the European patent does not disclose the invention in a manner sufficiently clear and complete for it to be carried out by a person skilled in the art; 
the subject-matter of the European patent extends beyond the content of the application as filed, or, if the patent was granted on a divisional application or on a new application filed under Article 61, beyond the content of the earlier application as filed.
See decisions/opinions of the Enlarged Board of Appeal G 3/89, G 10/91, G 11/91, G 1/95, G 2/95, G 7/95, G 1/99, G 3/04 (Annex I).

Art. 76, 83, 101, 123
R. 76, 80

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