Section 64, The Patents and Industrial Design Act, 2012

(1) A patent or industrial design may be surrendered by itsowner. (2) The surrender may be limited to one or more claims of the patent or industrial design. (3) The surrender shall promptly be recorded in the Register and published by the Registrar and the surrender shall be effective only after it has been published. (4) If a licence has been recorded in the Register, surrender of the patent or industrial design shall only be registered upon the submission of a declaration by which the licensee consents to the surrender, unless the licensee expressly waived this right in the licence contract.