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Patentable Subject Matter
USA: From No...
Software patents fought by USPTO prior to 1981
- Gottshalk v. Benson (1972) and Parker v. Flook (1978)
- "difficult questions of policy" ... "form and duration of such protection can be answered by Congress"
1981 US Supreme Court, Diamond v. Diehr,
Industrial process for the molding of rubber products, which included software. This was not a pure software patent