In 1998, Amazon.com filed a patent application (CA 2,246,933) titled "Method and System for Placing a Purchase Order via a Communication Network:29The invention allows a customer to purchase an item online with a single click of a mouse. This application is often referred to as the "one-click" patent appli- cation. The Patent Office found the invention to be novel and non-obvious but refused the application on the basis that it was directed to non-patentable subject matter. In analyzing the claims of the application, the Patent Office focused largely on determining what it considered the "actual invention" of the claims and whether that invention comprised patentable subject matter. On Amazon.corn's appeal to the Federal Court, the court disagreed with the Patent Office and set the test for determining patentable subject matter.