In G 3/97 and G 4/97 (OJ 1999, 245 and 270) it was held that the legislator explicitly designed the opposition procedure as a legal remedy in the public interest which, according to Art. 99(1) EPC, is open to "any person".

CLR IV C 2.1 Entitlement to file an opposition

2.1.1 General

2.1.2 Examination at any stage in the proceedings of entitlement to oppose

2.1.3 Filing of opposition by patent proprietor or inventor

CLR IV C 2 Filing and admissibility requirements

2.1. Entitlement to file an opposition

2.2. Formal requirements for opposition and filing in due time

2.3. Procedural aspects of examination of admissibility

CLR IV C 1 Legal character of opposition proceedings and applicable principles

CLR IV C Opposition procedure

1.

Legal character of opposition proceedings and applicable principles

CLR IV C 2.1.6 Filing of multiple oppositions by different persons

CLR IV C 2.1.5 Repeated filing of an opposition by the same person

CLR IV C 2.1.4 Filing of opposition on behalf of a third party – straw man

CLR IV C 2.1.3 Filing of opposition by patent proprietor or inventor

CLR IV C 2.1.2 Examination at any stage in the proceedings of entitlement to oppose

CLR IV C 2.1.1 General

CLR IV C 2.1 Entitlement to file an opposition

CLR IV C 2 Filing and admissibility requirements

CLR IV C 1 Legal character of opposition proceedings and applicable principles

CLR IV C Opposition procedure

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