The court may suspend proceedings, and in particular defer judgment where:
a.
the European Patent Office has not yet taken a final decision on a limitation or revocation of the European patent;
b.
the validity of the European patent is disputed and one party provides evidence that opposition may still be filed with the European Patent Office or that a final decision has not yet been taken with regard to an opposition;
c.
the European Patent Office has not yet taken a final decision regarding a petition for review of the decision under Article 112a of the European Patent Convention.