shall also be so endorsed.
(4) All endorsements of patents made under this section shall be entered in the register and published in the Official Gazette and in such other manner as the Controller thinks desirable for bringing the endorsement to the notice of manufacturers.
87. Certain patents demand to be endorsed with the words "Licences of Rights"
(1) Notwithstanding anything contained in this Act,-
- a. every patent in force at the commencement of this Act in respect of inventions relating to-
(i) substances used or capable of being used as food or as medicine or drug;
(ii) the methods or processes for the manufacture or production of any such substance as is referred to in sub-clause (i);
(iii) the methods or processes for the manufacture or production of chemical substances (including alloys, optical glass, semi-conductors and inter-metallic compounds),
shall be deemed to be endorsed with the words "Licences of right" from the commencement of this Act or from the expiration of three years from the date of sealing of the patent under the Indian Patents and Designs Act, 1911, whichever is later; and
(b) every patent granted after the commencement of this Act in respect of any such invention as is referred to in section 5 shall be deemed to be endorsed with the words "Licences of right" from the date of expiration of three years from the date of sealing of the patent.
(2) In respect of every patent which is deemed to be endorsed with the words "Licences of right" under this section, the provisions of section 88 shall apply.
88. Effect of endorsement of patent with the words is "Licences of Rights".
(1) Where a patent has been endorsed with the words "Licences of right", any person who is interested in working the patented invention in India may require the patentee to grant him a licence for the purpose on such terms as may be mutually agreed upon, notwithstanding that he is already the holder of a licence under the patent.
(2) If the parties are unable to agree on the terms of the licence, either of them may apply in the prescribed manner to the Controller to settle the terms thereof.
(3) The Controller shall, after giving notice to the parties and hearing them and after making such inquiry as he may deem fit, decide the terms on which the licence shall be granted by the patentee.
(4) The Controller may at any time before the terms of the licence are mutually agreed upon or decided by the Controller, on application made to him in this behalf by any person who has made any such requisition as is referred to in sub-section (1), permit him to work the patented invention on such terms as the Controller may, pending agreement between the parties or decision by the Controller, think fit to impose.
(5) In the case of every patent in respect of an invention referred to in sub-clause (i), or sub-clause (ii), of clause (a) of sub-section (1) of section 87 and deemed to be endorsed with the words "Licences of right" under clause (a) or clause (b) of that sub-section, the royalty and other remuneration reserved to the patentee under a licence granted to any person after such commencement shall in no case exceed four per cent of the net exfactory sale price in bulk of the patented article (exclusive of taxes levied under any law for the time being in force and any commissions payable) determined in such manner as may be prescribed.