Fletcher YoderMental processes, i.e., processes directed to abstract ideas that are not tied to specific machines and do not create or involve manufactures or compositions of matter, are not patentable under 35 U.S.C. § 101, even if they have a practical application.
There is no judicially recognized “technological arts” test; a method claim that applies an algorithm to produce a useful, concrete, and tangible result is directed to statutory subject matter under 35 U.S.C. § 101, irrespective of whether the claimed invention is directed to the “technological arts.”