Rule 47 – Examination as to formal requirements, recording in the register, assignment (Court of First Instance, revocation action) and designation of the judge-rapporteur Print this page 1. Rules 16 to 18 shall apply mutatis mutandis. 2. The Registrar shall notify the European Patent Office that the patent in question is subject to an action for revocation. Relation with Agreement: Articles 10 and 33 ‹ Rule 46 – Fee for the revocation action Up Rule 48 – Preliminary objection ›