to invite a search for its justification" and another for this: "To call [the situation following State Street] distressing is an understatement. The consensus . . . appears to be that patents should not be issuing for new business methods." The Supreme Court affirmed the judgment of patent ineligibility in Bilski v. Kappos. It did not endorse the use of the machine-or-transformation test as the sole test, but said it was only a "useful clue" to making the determination. The Court's majority also declined to hold business methods categorically patent ineligible. Four Justices, however—Justice Stevens, concurring, joined by Justices Breyer, Ginsburg, and Sotomayor—would have held all business methods patent ineligible, on the basis of the historical background of the patent clause of the Constitution. In a separate concurring opinion by Justice Breyer, he listed points on which the Court unanimously agreed. One point was that the State Street Bank case was not a correct statement of the law. Mayo and Alice The Supreme Court's subsequent decisions in Mayo v. Prometheus and Alice v. CLS Bank further expanded on Bilski and substantially obliterated State Street. These decisions established a two-step inquiry in which, first, the court is to look to whether the claimed invention is directed to an abstract idea or natural principle; if it is, a second step follows in which the court must determine whether the claimed invention implements the abstract idea inventively or instead in a merely routine or conventional manner. Unless the implementation or application of the abstract idea embodies an "inventive concept," the claimed invention is patent ineligible. (These concepts are explained further in the articles on the Mayo and Alice cases.) Under this test the State Street patent would be invalid. Alice specifically holds that a generic computer implementation of an abstract idea is patent ineligible. In Alice, the Supreme Court held that a software-related invention on an existing business procedure could not be saved from patent ineligibility and be made patent eligible simply by saying, "Do it with a computer." Instead, it would be necessary to implement the procedure in an inventive manner. This decision appears to have overruled State Street sub silentio, as called for in the eBay dissent. Developments after Alice decision After the Alice decision, many of the business method patents that had issued as a result of the State Street decision were invalidated. One commentator tabulated statistics through June 2015.