1. Beginning of the examination of the opposition 2. Extent of the examination 3. Non‑patentability pursuant to Art. 52 to 57 4. Insufficient disclosure of the invention 5. Clarity of claims 6. Subject-matter of the European patent extending beyond the original disclosure Source: http://www.epo.org/law-practice/legal-texts/html/guidelines/e/d_v.htmDate retrieved: 17 May 20218 references found. Click X to load a reference inside the current page, click on the title to open in a new page.EPO Guidelines - D Opposition and Limitation/Revocation ProceduresXGL D The meaning of opposition Loading...XGL D V 1 Beginning of the examination of the opposition Loading...XGL D V 2 Extent of the examination Loading...XGL D V 3 Non‑patentability pursuant to Art. 52 to Art. 57 Loading...XGL D V 4 Insufficient disclosure of the invention Loading...XGL D V 5 Clarity of claims Loading...XGL D V 6 Subject-matter of the European patent extending beyond the original disclosure Loading...EPO Guidelines - G PatentabilityXGL GL INDEX 2021 Loading...