44 Intellectual Property Act, No. 36 of 2003 or registration, use the industrial design and exercise the exclusive rights referred to in paragraphs (a) to (c) of subsection (1) of section 47, but may only jointly withdraw the application, renounce the registration or conclude a licence contract. CHAPTER IX LICENCE CONTRACTS OF INDUSTRIAL DESIGNS Interpretation. 51. For the purposes of this Part licence contract means any contract by which the registered owner of an industrial design (“the Licensor”) grants to another person or enterprise (“the licensee”) a licence to do any or all of the acts referred to in paragraphs (a), (b) and (c) of subsection (1) of section 47. Form and record of licence contract. 52. (1) A licence contract shall be in writing signed by or on behalf of the contracting parties. (2) Upon a request in writing signed by or on behalf of the contracting parties, the Director-General shall on payment of the prescribed fee, record in the register such particulars relating to the contract as the parties thereto requires to be recorded : Provided that the parties shall not be required to disclose or have recorded any other particulars relating to the said contract. Rights of licensee. 53. In the absence of any provision to the contrary in the licence contract, the licensee shall— (a) be entitled to do any or all of the acts referred to in paragraphs (a), (b) and (c) of subsection (1) of section 47 within Sri Lanka, during the period of validity of the registration of the industrial design, inclusive of the period of renewl if any ; (b) not be entitled to assign or transmit his rights under the licence contract or grant sub-licenses to third parties.