Patents [No. 40 of 2016 101. The Minister may, by statutory instrument, direct the Registrar to grant compulsory licences with respect to patented products declared by the Government, to be of vital importance to the defence, public health, the environment or the economy of the country. 102. The Minister may on the application of an interested person, or on the advice of the Registrar, revoke a compulsory licence on any of the following grounds: (a) that the licensee has failed to comply with the terms of the licence; (b) that the conditions which justified the grant of the licence have ceased to exist and are unlikely to recur; (c) that the interests of the licensee have been adequately protected; (d) that the licensee has failed, within twenty-four months from the grant of the licence, to take the necessary steps to work the invention to satisfy the reason for the grant of a compulsory licence; or (e) that the patentee has granted the licensee a licence contract on more favourable terms. 103. The Registrar shall enter in the Register, a grant of a compulsory licence, the terms and conditions of the licence, variation of the terms and conditions of the licence and revocation of the licence. 104. (1) A patentee may, at any time after the sealing of a patent, apply to the Registrar for a patent to be endorsed with the words “licence of right”. (2) The Registrar shall, where the Registrar is satisfied that the patentee is not prohibited by contract from granting a licence, endorse or cause the patent to be endorsed as referred to in subsection (1). (3) A patentee may, at any time after a patent has been endorsed, apply to the Registrar for the cancellation of the endorsement referred to in subsection (1). PART XIV EXPLOITATION OF PATENTED INVENTION BY GOVERNMENT 105. Where the Government requires, for purposes of public health, the environment or national emergency, that a patented invention be exploited, for non-commercial purposes, by the 847 Compulsory licence granted under regulation Revocation of compulsory licence Registration of compulsory licence Licence of right Use of invention by Government