After more than seven months, the Supreme Court issued its decision on Bilski v. Kappos. The Court unanimously affirmed the judgment of the Federal Circuit, ruling that the claims at issue are not eligible subject matter as they merely claim an abstract idea. The Court ruled that business methods are eligible subject matter, but rejected the Federal Circuit’s machine-transformation test as the sole test to determine patentablity under Section 101.
The Court in interpreting Section 101 confirmed a broad and dynamic patent-eligibility principle, consistent with Congressional intent as evidenced by the use of the term “any” in the Patent Act. Accordingly, the Court rejected the categorical limitations on “process” patents, expressly the machine-or-transformation test and the categorical exclusion of business methods. Although the Court disapproved of limiting Section 101 determinations to a single test, the Court “by no means foreclose[d] the Federal Circuit’s development of other limiting criteria that further the purposes of the Patent Act[.]” Thus, although business method patents are not foreclosed under the majority’s opinion, the decision may signal a narrowing of this category of claims.
Rather than announcing a categorical rule, Justice Kennedy’s opinion for the majority resolved the case narrowly based on prior precedents, particularly Benson, Flook, and Diehr. In Benson, a claim covering an algorithm that coverts numerals to pure binary code was not patent eligible as the claim was in effect is a formula.” Flook stands for the proposition that the prohibition against patenting abstract ideas “cannot be circumvented by attempting to limit the use of the formula to a particular technological environment’ or adding ‘insignificant postsolution activity.” The Diehr Court held that application of mathematical formulas and laws of nature may be patented. The claims at issue in Bilski, the Court held, were similar to those at issue in Flook and Benson.
Justice Stevens’ concurring opinion was joined by Justices Breyer, Ginsburg, and Sotomayor. Justice Stevens said, “The wiser course would have been to hold that petitioners’ method is not a ‘process’ because it describes only a general method of engaging in business transactions—and business methods are not patentable.”
Justice Breyer wrote separately, despite joining Stevens’s opinion in full, and was joined in part by Justice Scalia. Justice Breyer noted that, despite the disagreement about the patentability of business methods generally, all the members of the Court agreed on the following points: (1) “although the text of §101 is broad, it is not without limit”; (2) “the so-called ‘machine-or-transformation test’ has thus repeatedly helped the Court to determine what is a patentable process”; (3) “while the machine-or-transformation test has always been a ‘useful and important clue,’ it has never been the ‘sole test’ for determining patentability”; and (4) “although the machine-or-transformation test is not the only test for patentability, this by no means indicates that anything which produces a ‘useful, concrete, and tangible result’ is patentable.”