Powers of Controller in case of potential infringement
Section 19 of the Patents Act, 1970 deals with powers of Controller in case of potential infringement. If, in consequence of the investigations required [under this Act], 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 The Act came into force on 01 Apr 1978.
(1) If, in consequence of the investigations required 1[under this Act], 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.
Section 19, The Patents Act, 1970 (Act 39 of 1970).
Cross-references
Extracted from the operative text of the enactments themselves. Every destination below exists in our corpus.
Referred to by 1
Made under this section, and citing it
2 instruments name this provision in its title or its text without being made under it.
Questions about Section 19
What does Section 19 of the Patents Act deal with?
Section 19 of the Patents Act is headed "Powers of Controller in case of potential infringement". If, in consequence of the investigations required [under this Act], 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
How do I find court cases under Section 19 of the Patents Act?
In judgments and charge sheets this section is written several ways, and each form finds a different set of orders. These search the full text of every order eCourtsIndia holds, best matches first: Patents Act 19, section 19 Patents Act, section 19 of the Patents Act. Each opens the full list of orders on eCourtsIndia, where it can be narrowed by court, year and outcome.
What should I read with Section 19 of the Patents Act, and has it changed?
1 other provision in this corpus refers back to it. 2 instruments name it without being made under it, most recently Patents (2nd Amendment) Rules, 2020 (2020), then The Patents (Amendment) Rules, 2014 (2014).
When did Section 19 of the Patents Act come into force?
Section 19 of the Patents Act, cited as Patents Act 19, came into force on 01 Apr 1978, having been enacted on 19 Sep 1970. It is in force as at the date shown on this page.
Other sections of this Act
Source and method. Compiled from the enactments of Parliament and of the State legislatures as published on India Code, and republished together with commentary and other original matter under section 52(1)(q)(ii) of the Copyright Act, 1957. Structured, cross-referenced and maintained by eCourtsIndia. Text as in force on 17 Oct 2026. This page is not a substitute for legal advice.