Petitioners’ patent application seeks protection for a claimed invention that explains how commodities buyers and sellers in the energy market can protect, or hedge, against the risk of price changes. The key claims are claim 1, which describes a series of steps instructing how to hedge risk, and claim 4, which places the claim 1 concept into a simple mathematical formula. The remaining claims explain how claims 1 and 4 can be applied to allow energy suppliers and consumers to minimize the risks resulting from fluctuations in market demand. The patent examiner rejected the application on the grounds that the invention is not implemented on a specific apparatus, merely manipulates an abstract idea, and solves a purely mathematical problem. The Board of Patent Appeals and Interferences agreed and affirmed. The Federal Circuit, in turn, affirmed. The en banc court rejected its prior test for determining whether a claimed invention was a patentable “process” under Patent Act, 35 U. S. C. §101—i.e., whether the invention produced a “useful, concrete, and tangible result,” see, e.g., State Street Bank & Trust Co v. Signature Financial Group, Inc., 149 F. 3d 1368, 1373—holding instead that a claimed process is patent eligible if: (1) it is tied to a particular machine or apparatus, or (2) it transforms a particular article into a different state or thing. Concluding that this “machine-or-transformation test”is the sole test for determining patent eligibility of a “process” under §101, the court applied the test and held that the application was not patent eligible.
Held: The judgment is affirmed.