Certificate of contested validity of patent

(1) Where in any proceedings before the Court the validity of a patent to any extent is contested and that patent is found by the Court to be wholly or partially valid, the Court may certify the finding and the fact that the validity of the patent was so (2) Where a certificate is granted under this section and in any subsequent proceedings before the Court for infringement of the patent concerned or for invalidation, a final order or judgment is made or given in favour of the party relying on the validity of the patent as found in the earlier proceedings, that party shall, unless the Court otherwise directs, be entitled to his costs or expenses as between attorney-at-law and client (other than the costs or expenses of any appeal in the subsequent