🛠️ Invention or technique

Oil-degrading engineered bacterium and the patenting of living organisms (Chakrabarty)

Bacteria modificada degradadora de petróleo y patente de seres vivos (Chakrabarty)

Date
1971-1980 · confidence high
Place
General Electric, Schenectady, New York, United States
Credited to
Ananda Mohan Chakrabarty
Field
Life & health

What it is

The Indian-American microbiologist Chakrabarty combined Pseudomonas plasmids to obtain a bacterium able to degrade several components of crude oil. The US Supreme Court (Diamond v. Chakrabarty, 1980) allowed a modified living organism to be patented, the legal pillar of the biotechnology industry.

The bacterium was not modified by recombinant DNA but by plasmid conjugation; the patent was filed in 1971 and granted in 1981 after the June 1980 ruling. The bacterium was never used at scale on real spills.

What it led to

  • patentability of modified microorganisms, plants and animals
  • bioremediation of oil spills with bacterial consortia
  • intellectual-property model of biotechnology (Oncomouse, transgenic crops)
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Sources✓ verified 2026-11-04