The Industrial Property Act, 2001 32 licensee may not grant permission to any third person to do any of the acts referred to in section 54. Right of licensor to grant further licences and use of the invention 65. (1) In the absence of any provision to the contrary in the licence contract, the licensor may grant permission to any third person to do, or may himself do, any of the acts which constitute exercising the rights of ownership. (2) If the licence contract provides that such contract or the permission granted by it is exclusive, the licensor may neither grant permission to any third person to do any of the acts referred to in section 54 and covered by the licence contract, nor himself do any of those acts, and the licensee shall be considered an exclusive licensee for the purposes of this Act. Effects of patent not being granted, revoked or being invalidated 66. Where, before the expiration of the licence contract any of the following events occurs with respect to any application or patent referred to in that contract: - (a) the application is withdrawn; (b) the application is finally rejected; (c) the patent is finally revoked or declared invalid; the Tribunal may make any order it deems reasonable under the circumstances for the repayment of the royalties, or the return of any consideration paid or given under the contract, directly relating to such application or patent. Form of licence contracts 67. All licence contracts shall be in writing and shall be signed by the parties thereto. Petition for registration 68. (1) All licence contracts, including modifications thereof, shall be submitted to the Institute for registration in the Patent Register. (2) A petition for registration under subsection (1) may be made by any party to the contract, and shall be accompanied by such documents and fees as may be prescribed. (3) The Managing Director shall issue to the applicant a receipt, which shall be proof of the fact of filing the petition and of the date on which it was filed and if no receipt is issued within fourteen days from the date of the petition, the petitioner may rely on other evidence to prove the fact and date . (4) Where: (a) section 67 or subsections (2) to (4) of this section, and the rules relating thereto, have not been complied with; or (b) the licence contract cannot be registered under section 69, the Managing