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Patents Act, 1970 · Chapter II — Inventions Not Patentable

Section 3: What are not inventions

In plain English

Section 3 lists subject matter that is not an invention under the Act, even if it is new and inventive.

The list covers, among others: frivolous inventions or ones contrary to natural laws; inventions whose use would be contrary to public order or morality or seriously harm health or the environment; mere discoveries of scientific principles or of things occurring in nature; and mere admixtures or rearrangements of known things.

Clause (d) excludes new forms of a known substance that do not enhance its known efficacy, as well as new properties or new uses of known substances and the mere use of known processes, unless the process results in a new product or uses at least one new reactant.

Clause (k) excludes mathematical or business methods, a computer programme per se and algorithms.

Other clauses exclude methods of agriculture or horticulture, medical and similar treatment processes, plants and animals (other than micro-organisms), artistic works, mental acts and game rules, presentation of information, topography of integrated circuits, and traditional knowledge.

This is a summary, not legal advice. The text of the Act below governs. Summary by , Co-founder and CEO, PatentAssist.ai.

Text of section 3

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;

(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 or discovery of any living thing or non-living substance occurring in nature;

(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;

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(h) a method of agriculture or horticulture;

(i) any process for the medicinal, surgical, curative, prophylactic diagnostic, therapeutic or other treatment of human beings or any process for a similar treatment of animals to render them free of disease or to increase their economic value or that of their products.

(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.

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All sections of the Patents Act, 1970

Text of the Patents Act, 1970 as amended up to 2024, from the consolidated version published by the Office of the Controller General of Patents, Designs and Trade Marks (IP India). Reproduced under section 52(1)(q) of the Copyright Act, 1957. Check the official text before relying on it.