This article adds to the two-part series published by the Intellectual Property & Technology Law Journal in August and September 2018. This third article continues the analysis of decisions by the U.S. Court of Appeals for the Federal Circuit relating to computer software eligibility following Aatrix Software, Inc. v. Green Shades Software, Inc. It also includes a brief review of the U.S. Patent and Trademark Office (USPTO or PTO) guidelines (Guidelines) concerning subject matter eligibility and a short review of pertinent literature on this topic.

Originally published in the June 2023 edition of the Intellectual Property & Technology Law Journal (Vol. 35, No. 6).