Opposition may only be filed on the grounds that:
the subject-matter of the European patent is not patentable under Articles Article 52 to Article 57;
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.
Source: http://www.epo.org/law-practice/legal-texts/html/epc/2016/e/ar100.html
Date retrieved: 24 November 2017
235 references found. Limiting display to 200 references.
Click X to load a reference inside the current page, click on the title to open in a new page.EPC Articles
EPC Implementing Rules
EPO Guidelines - D Opposition and Limitation/Revocation Procedures
EPO Guidelines - E General Procedural Matters
EPO Guidelines - H Amendments and Corrections
Case Law Book: I Patentability
Case Law Book: II Conditions to be met by an Application
XCLR II E 1.5.2.A Decisions of the Enlarged Board of Appeal on disclaimers in G 1/03, G 2/03 and G 2/10
XCLR II E 3.3 to the claim of an undisclosed feature limiting protection conferred, without providing a technical contribution
XCLR II E 4.2.3 evident that nothing else would have been intended than what is offered as the correction
XCLR II E 4.3 of errors in the description, claims and drawings after grant, and in opposition proceedings