Intellectual Property Act, No. 36 of 2003 45 54. (1) In the absence of any provision to the contrary in the licence contract, the licensor may grant further licenses to third parties in respect of the same industrial design or on behalf of himself do any or all of the acts referred to in subparagraphs (a), (b) and (c) of subsection (1) of section 47. Rights of licensor. (2) Where the license contract provides that the license is exclusive, and unless it is expressly provided otherwise in such contract, the licensor shall not grant further licenses to third parties in respect of the same industrial design or not execute any of the acts referred to in sub-paragraphs (a), (b) and (c) of subsection (1) of section 47 or cause to be executed. 55. Any clause or condition in a license contract shall be null and void in so far as it imposes upon the licensee, in industrial or commercial field, restrictions not derived from the rights conferred by this Part on the registered owner of an industrial design, or unnecessary for safeguarding of such rights : Invalid clauses in license contracts. Provided that— (a) restrictions concerning the scope, extent, or duration of use of the industrial design, or the geographical area in or the quality or quantity of the products in connection with which the industrial design may be used ; and (b) obligations imposed upon the licensee to refrain from all acts capable of prejudicing the validity of the registration of the industrial design, shall not be deemed to constitute such restrictions. 56. Where, before the expiration of the license contract the registration is declared null and void the licensee in such event not be required to make any payment to the licensor under the licence contract, and shall be entitled to reimbursement of the payments already made : Effect of nullity of registration of license contract.