What are not inventions
Section 3 of the Patents Act, 1970 deals with what are not inventions. The following are not inventions within the meaning of this Act,-- (a) an invention which is frivolous or which claims anything obviously contrary to well established natural laws; The Act came into force on 01 Apr 1978.
The following are not inventions within the meaning of this Act,--
(a) an invention which is frivolous or which claims anything obviously contrary to well established natural laws;
1[(b) an invention the primary or intended use or commercial exploitation of which would be contrary to public order or morality or which causes serious prejudice to human, animal or plant life or health or to the environment;]
(c) the mere discovery of a scientific principle or the formulation of an abstract theory 2[or discovery of any living thing or non-living substance occurring in nature];
3[(d) the mere discovery of a new form of a known substance which does not result in the enhancement of the known efficacy of that substance or the mere discovery of any new property or new use for a known substance or of the mere use of a known process, machine or apparatus unless such known process results in a new product or employs at least one new reactant.
Explanation.--For the purposes of this clause, salts, esters, ethers, polymorphs, metabolites, pure form, particle size, isomers, mixtures of isomers, complexes, combinations and other derivatives of known substance shall be considered to be the same substance, unless they differ significantly in properties with regard to efficacy;]
(e) a substance obtained by a mere admixture resulting only in the aggregation of the properties of the components thereof or a process for producing such substance;
(f) the mere arrangement or re-arrangement or duplication of known devices each functioning independently of one another in a known way;
4* * * * *
(h) a method of agriculture or horticulture;
(i) any process for the medicinal, surgical, curative, prophylactic 5[diagnostic, therapeutic] or other treatment of human beings or any process for a similar treatment of animals 6*** to render them free of disease or to increase their economic value or that of their products.
5[(j) plants and animals in whole or any part thereof other than micro-organisms but including seeds, varieties and species and essentially biological processes for production or propagation of plants and animals;
(k) a mathematical or business method or a computer programme per se or algorithms;
(l) a literary, dramatic, musical or artistic work or any other aesthetic creation whatsoever including cinematographic works and television productions;
(m) a mere scheme or rule or method of performing mental act or method of playing game;
(n) a presentation of information;
(o) topography of integrated circuits;
(p) an invention which, in effect, is traditional knowledge or which is an aggregation or duplication of known properties of traditionally known component or components.]
Section 3, The Patents Act, 1970 (Act 39 of 1970).
Related judgements & precedents
These are some judgments that construed this section, and hold precedence value. They hold authority on how to read, interpret and use this section.
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Novartis AG v. Union of India
Court's Decision & Legal Precedent
Glivec patent refused under Patents Act section 3(d).
The holding above is the ratio decidendi as extracted from the judgment by eCourts India, reproduced unaltered — it is a rendering of the court's reasoning, not a substitute for its words. Read the order itself before relying on it.
Made under this section, and citing it
3 instruments state that it was made under this provision — the power to make it comes from here, so a change to any of them changes what this section requires in practice. Newest first.
Another 7 instruments name this provision in its title or its text without being made under it.
- Patents (2nd Amendment) Rules, 2020Notification 2020
- Patents Amendment Rules 2020Notification 2020
- Corrigendum: The Patents (Amendment) Rules, 2019Rule 2019
- The Patents (Amendment) Rules, 2019Rule 2019
- The Patents (Amendment) Rules, 2017Rule 2017
- The Patents (Amendment) Rules, 2016Rule 2016
- The Patents (Amendment) Rules, 2014Rule 2014
Questions about Section 3
What have the courts held on Section 3 of the Patents Act?
Novartis AG v. Union of India (01 Apr 2013) is the leading judgment on this section among those set out below: Glivec patent refused under Patents Act section 3(d).
How do I find court cases under Section 3 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 3, section 3 Patents Act, section 3 of the Patents Act. People searching for it also type patent act 3d and patent act 3. Each opens the full list of orders on eCourtsIndia, where it can be narrowed by court, year and outcome. 1 reported judgment on this section is set out on this page, beginning with Novartis AG v. Union of India (01 Apr 2013).
What should I read with Section 3 of the Patents Act, and has it changed?
The rules and notifications made under it are where it actually bites, and there are 3: most recently The Patents (Amendment) Rules, 2013 (2013), then The Patents (Amendment) rules, 2006 (2006), and 1 more.
When did Section 3 of the Patents Act come into force?
Section 3 of the Patents Act, cited as Patents Act 3, 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 14 Oct 2026. This page is not a substitute for legal advice.