(2) If it appears to the Controller that the invention is claimed in a claim of any other complete specification referred to in clause (b) of sub-section (1) of section 13, he may, subject to the provisions hereinafter contained, direct that a reference to that other specification shall be inserted by way of notice to the public in the applicant’s complete specification unless within such time as may be prescribed,
- a. the applicant shows to the satisfaction of the Controller that the priority date of his claim is not later than the priority date of the claim of the said other specification; or
- b the complete specification is amended to the satisfaction of the Controller.
(3) If it appears to the Controller, as a result of an investigation under section 13 or otherwise,-
- a. that the invention so far as claimed in any claim of the applicant’s complete specification has been claimed in any other complete specification referred to in clause (a) of sub-section (1) of section 13; and
- b. that such other complete specification was published on or after the priority date of the applicant’s claim,
then, unless it is shown to the satisfaction of the Controller that the priority date of the applicant’s claim is not later than the priority date of the claim of that specification, the provisions of sub-section (2) shall apply thereto in the same manner as they apply to a specification published on or after the date of filing of the applicant’s complete specification.
(4) Any order of the Controller under sub-section (2) or sub-section (3) directing the insertion of a reference to another complete specification shall be of no effect unless and until the other patent is granted.
19. Powers of Controller in case of potential infringement.
(1) If, in consequence of the investigations required by the foregoing provisions of this Act or of proceedings under section 25, it appears to the Controller that an invention in respect of which an application for a patent has been made cannot be performed without substantial risk of infringement of a claim of any other patent, he may direct that a reference to that other patent shall be inserted in the applicant’s complete specification by way of notice to the public, unless within such time as may be prescribed-
- a. the applicant shows to the satisfaction of the Controller that there are reasonable grounds for contesting the validity of the said claim of the other patent; or
- b. the complete specification is amended to the satisfaction of the Controller.
(2) Where, after a reference to another patent has been inserted in a complete specification in pursuance of a direction under sub-section (1)-
- a. that other patent is revoked or otherwise ceases to be in force; or
- b. the specification of that other patent is amended by the deletion of the relevant claim; or
- c. it is found, in proceedings before the court or the Controller, that the relevant claim of that other patent is invalid or is not infringed by any working of the applicant’s invention, the Controller may, on the application of the applicant, delete the reference to that other patent.
20. Powers of Controller to make orders regarding substitution of applicants, etc.
(1) If the Controller is satisfied, on a claim made in the prescribed manner at any time
