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In re Meyer, 688 F.2d 789, 215 U.S.P.Q. (BNA) 193 (C.C.P.A. 1982) (full-text).

C.C.P.A. Proceedings[]

The C.C.P.A. held process and apparatus claims covering the use of a computer program and algorithm for storing and comparing medical test results was unpatentable. The applicant conceded and the court found that the claimed invention computerized the thought process of a physician. The court concluded that the claims were properly rejected by the Patent Office because they related to a:

mathematical algorithm representing a mental process that has not been applied to physical elements or process steps and is not, therefore, limited to any otherwise statutory process, machine, manufacture, or composition of matter.