Patentability of Engineered Microbiomes Disputes

Introduction

Engineered microbiomes are deliberately designed communities of microorganisms, such as bacteria, fungi, and viruses, modified to perform specific functions in medicine, agriculture, environmental protection, or industrial production. Patent disputes arise over whether these communities are genuine human inventions or merely discoveries of naturally occurring biological systems. Other controversies concern novelty, inventive step, biological material disclosure, ownership, and the scope of patent claims.

Legal Framework in India

The Patents Act, 1970, governs the patentability of engineered microbiome inventions in India. Section 2(1)(j) requires an invention to be new, involve an inventive step, and be capable of industrial application. Section 3(c) excludes the discovery of a living thing or substance occurring in nature, while Section 3(j) excludes plants and animals, in whole or in part, other than microorganisms, as well as essentially biological processes. The microorganism exception does not automatically make every microbial community patentable.

An engineered microbiome may qualify if the applicant demonstrates a genuine technical modification or inventive combination, a specific and useful function, and sufficient disclosure to enable a skilled person to reproduce the invention. Claims merely covering naturally occurring microbial combinations or their known properties may face objections. Deposit of biological material may also be necessary where written disclosure alone is insufficient.

Important Case Laws

1. ** Diamond v. Chakrabarty, 447 U.S. 303 (1980):** The US Supreme Court held that a genetically engineered bacterium capable of breaking down components of crude oil could be patentable because it had characteristics not found in naturally occurring bacteria. The case supports patent protection for genuinely engineered microorganisms, subject to other patent requirements.

LII / Legal Information Institute

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2. ** Funk Brothers Seed Co. v. Kalo Inoculant Co., 333 U.S. 127 (1948):** The Court rejected claims covering a mixture of naturally occurring bacterial strains where the bacteria retained their existing properties and the combination did not produce a sufficient inventive contribution. This is particularly relevant to microbiome patents: simply combining known microbes may be insufficient without a demonstrable inventive technical effect.

Justia U.S. Supreme Court Center

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3. ** Association for Molecular Pathology v. Myriad Genetics, Inc., 569 U.S. 576 (2013):** The US Supreme Court held that naturally occurring DNA does not become patent-eligible merely because it is isolated. Although this case concerned human genes rather than engineered microbiomes, it illustrates the boundary between discovering biological material and creating a patentable invention.

WIPO

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Common Grounds of Dispute

Novelty and inventive step: Whether the microbial strains, their proportions, genetic modifications, or interactions differ meaningfully from prior art.

Sufficiency of disclosure: Whether the patent describes the microbial composition and methods well enough for a skilled person to reproduce the claimed result.

Claim breadth: Whether a patent improperly covers a broad class of microbial communities beyond what the inventor actually developed.

Public interest and biosafety: Whether the invention raises concerns under Section 3(b) of India’s Patents Act, including serious prejudice to human, animal, or plant life or the environment.

Conclusion

Engineered microbiomes are not automatically patentable merely because they involve living organisms or modern biotechnology. In India, the express exception for microorganisms under Section 3(j) must be read alongside the exclusions for discoveries of natural phenomena and the requirements of novelty, inventive step, industrial applicability, and adequate disclosure. Chakrabarty supports patentability for genuinely engineered biological inventions, while Funk Brothers warns against monopolizing naturally occurring properties or routine microbial combinations. These decisions are persuasive comparative authorities, not binding interpretations of Indian patent law.