In United States patent law, the machine-or-transformation test is a test of patent eligibility under which a claim to a process qualifies to be considered for patenting if it (1) is implemented with a particular machine, that is, one specifically devised and adapted to carry out the process in a way that is not concededly conventional and is not trivial; or else (2) transforms an article from one thing or state to another.
The test has been articulated recently in In re Bilski, but dates back to the nineteenth century. The test is articulated also in the patent-eligibility trilogy—Gottschalk v. Benson, Parker v. Flook, and Diamond v. Diehr.
Read more about Machine-or-transformation Test: Supreme Court Has Held That This Is Not The Only Test, Outstanding Issues
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