(1) If several persons are involved in the proceedings, the Federal Patent Court may determine that the costs of the proceedings be imposed on one of the parties in full or in part if this is equitable. In particular, it may also determine that costs incurred by the parties, insofar as they were necessary to appropriately safeguard the claims and rights, be reimbursed by one of the parties in full or in part.
(2) Costs may be imposed on the President of the German Patent and Trade Mark Office only if he or she has made requests after intervening in the proceedings.
(3) The Federal Patent Court may order the reimbursement of the appeal fee in accordance with the Patent Costs Act.
(4) Subsections (1) to (3) also apply if the appeal, the application or the opposition is withdrawn in full or in part or the patent is surrendered.
(5) In all other cases, the provisions of the Code of Civil Procedure concerning the procedure for the assessment of costs (sections 103 to 107) and compulsory enforcement based on orders assessing the costs (sections 724 to 802) apply accordingly.
2. Revocation and compulsory licence proceedings