18 No. 10 Patents and Industrial Designs Act 2012 (b) � public non-commercial use; and (c) � anti-competitive practices determined as such by the Registrar. (6) The exploitation of a patented invention in the field of semi-conductor technology shall only be authorised either for public non-commercial use or where the Registrar determines that the manner of exploitation of the patented invention by the owner of the patent or his licensee, is anti-competitive and if the Minister is satisfied that the issuance of the non-voluntary licence would remedy such practice. (7) � The authorisation shall not exclude (a) � the conclusion of licence contracts by the owner of the patent; (b) � the continued exercise, by the owner of the patent, of his right under this Act; or (c) � the issuance of a non-voluntary licence. (8) Where a third person has been designated by the Minister, the authorisation may only be transferred with the enterprise or business of that person or with the part of the enterprise or business within which the patent invention is being exploited. (9) Where the exploitation of the invention by a Government agency or third person designated by the Minister is authorised under paragraph (a) of subsection (1), it shall be predominantly for the supply of the market in Sierra Leone. (10) Upon request of the owner of the patent, the Government agency or of the third person authorised to exploit the patented invention, the Minister may, after hearing the parties, if either or both wish to be heard, vary the terms of the decision authorising the exploitation of the patented invention to the extent that changed circumstances justify such variation. No. 10 Patents and Industrial Designs Act 2012 (11) Upon request of the owner of the patent, the Minister may terminate the authorisation if he is satisfied after hearing the parties, that the circumstances which led to his decision have ceased to exist and are unlikely to recur or that the Government agency or third person designated by him has failed to comply with the terms of the decision. (12) Notwithstanding subsection (10), the Minister shall not terminate the authorisation if he is satisfied that the need for adequate protection of the legitimate interests of the Government agency or third person designated by him justifies the maintenance of the decision. (13) Any person aggrieved by a decision of the Minister under this section may appeal to the Court. 27. (1) On a request made to the Registrar after the expiration Nonof a period of four years from the date of filing of a patent application voluntary or three years from the date of the grant of the patent, whichever licences. period expires last, the Registrar may issue a non-voluntary licence if he is satisfied that the patented invention is not exploited or is insufficiently exploited, by working the invention locally or by importation, in Sierra Leone. (2) Notwithstanding subsection (1), a non-voluntary licence shall not be issued if the owner of the patent satisfies the Registrar that circumstances exist which justifies the non-exploitation or insufficient exploitation of the patented invention in Sierra Leone. (3) � A non-voluntary licence shall include (a) � the scope and function of the licence; (b) � the time limit within which the licensee must begin to exploit the patented invention; and (c) � the remuneration to be paid to the owner of the patent and the conditions of payment. (4) The beneficiary of a non-voluntary licence may exploit the patented invention in Sierra Leone according to the terms and time limit set out in the licence, and, thereafter, shall exploit the patented invention sufficiently. 19