(6) Save as otherwise provided in sub-section (5), the provisions of sub-sections (1), (2),(4) and (5) of section 93 (regarding the powers of the Controller) and of sections 94 and 95 shall apply to licences granted under this section as they apply to licences granted under section 84.
89. Revocation of patents by the Controller for non-working. (1) Where, in respect of a patent, a compulsory licence has been granted or the endorsement "Licences of right" has been made or is deemed to have been made, the Central Government or any person interested may, after the expiration of two years from the date of the order granting the first compulsory licence or, as the case may be, the date of the grant of the first licence under section 88, apply to the Controller for an order revoking the patent on the ground that the reasonable requirements of the public with respect to the patented invention have not been satisfied or that the patented invention is not available to the public at a reasonable price.
(2) Every application under sub-section (1) shall contain such particulars as may be prescribed and the facts upon which the application is based, and, in the case of an application other than by the Central Government, shall also set out the nature of the applicant’s interest.
(3) The Controller, if satisfied that the reasonable requirements of the public with respect to the patented invention have not been satisfied or that the patented invention is not available to the public at a reasonable price, may make an order revoking the patent.
(4) Every application under sub-section (1) shall ordinarily be decided within one year of its being presented to the Controller.
90. When reasonable requirements of the public deemed not satisfied For the purposes of sections 84, 86 and 89, the reasonable requirements of the public shall be deemed not to have been satisfied-
- a. if, by reason of the default of the patentee to manufacture in India to an adequate extent and supply on reasonable terms the patented article or a part of the patented article which is necessary for its efficient working or if, by reason of the refusal of the patentee to grant a licence or licences on reasonable terms,-
- (i) an existing trade or industry or the development thereof or the establishment of any new trade or industry in India or the trade or industry of any person or classes of persons trading or manufacturing in India is prejudiced; or
- (ii) the demand for the patented article is not being met to an adequate extent or on reasonable terms from manufacture in India; or
- (iii) a market for the export of the patented article manufactured in India is not being supplied or developed; or
- (iv) the establishment or development of commercial activities in India is prejudiced; or
- b. if, by reason of conditions imposed by the patentee (whether before or after the commencement of this Act) upon the grant of licences under the patent, or upon the purchase, hire or use of the patented article or process, the manufacture, use or sale of materials not protected by the patent, or the establishment or development of any trade or industry in India, is prejudiced; or
- c. if the patented invention is not being worked in India on a commercial scale to an adequate extent or is not being so worked to the fullest extent that is reasonably practicable; or
- d. if the demand for the patented article in India is being met to a substantial extent by