Patents [No. 40 of 2016 (4) The Registrar shall, before revoking the patent, give the patentee or any person having an interest in the patent an opportunity to be heard. (5) Where there is no objection to the revocation of the patent, the Registrar shall make an order revoking the patent. (6) The Registrar shall, where there is an objection to the revocation of the patent, make an order revoking the patent or dismiss the application to revoke the patent, after hearing the matter. (7) Where an application for the revocation of a patent applies only to some parts of the claim in the complete specification, the Registrar may only revoke those parts, except that where the grounds for revocation are established with respect to the first claim of the patent, the patent shall be invalidated. (8) Where a patent is revoked, in accordance with this section, the Registrar shall publish or cause to be published the revocation of the patent in the Industrial Property Journal within a prescribed period from the day of revocation. (9) A person aggrieved with a decision of the Registrar may, within three months of receiving the decision, appeal to the High Court. 92. (1) Where the Registrar, in consultation with the Minister, is of the opinion that a patented invention or the mode in which the patent is being exercised is prejudicial to the environment, public safety or public health, the Registrar may, after making a declaration in the Industrial Property Journal, revoke the patent. (2) A person aggrieved by the decision of the Registrar, referred to in subsection (1), may appeal to the High Court within three months of the Registrar’s decision. 93. Where a patent is revoked, the patent shall be null and void as from the date of the grant. PART XII PUBLICATION OR COMMUNICATION OF INVENTION RELATED TO DEFENCE AND SECURITY 94. (1) The Minister responsible for defence or the Minister responsible for internal security, as the case may be, may issue a notice, in a prescribed manner, to the Registrar, directing the Registrar to prohibit the publication or communication, to an unauthorised person, of an application for the grant of a patent and information contained therein, which, in the opinion of the Minister may, if published or communicated, be prejudicial to the defence of the country or the safety of the public. 841 Revocation of patent in public interest Date and effect of revocation Prohibiting publication or communication of information prejudicial to defence