1. The Court shall decide on the validity of a patent on the basis of an action for revocation or a counterclaim for revocation.
3. Without prejudice to Article 138(3) of the EPC, if the grounds for revocation affect the patent only in part, the patent shall be limited by a corresponding amendment of the claims and revoked in part.
5. Where the Court, in a final decision, revokes a patent, either entirely or partly, it shall send a copy of the decision to the European Patent Office and, with respect to a European patent, to the national patent office of any Contracting Member State concerned.