Bilski: Some Business Method & Software Patents Survive
In re Bilski, __ F.3d __ (Fed. Cir. 2008) (en banc).*
Chief Judge Michel, writing for a nine judge majority, affirmed the Board of Patent Appeals and Interferences' finding that Bilski's invention -- a commodities trading method for hedging risks -- did not meet the 35 U.S.C. § 101 patentable subject matter requirement. The Federal Circuit held that State Street's "useful, concrete, and tangible result" test was insufficient to determine patentability -- disagreements have already started regarding whether State Street was narrowed or overturned. The Federal Circuit held that the Supreme Court's "machine-or-transformation" test was the only test for determining patentability:
A claimed process is surely patent-eligible under § 101 if: (1) it is tied to a particular machine or apparatus, or (2) it transforms a particular article into a different state or thing.
I found Judge Dyk's concurrence tracing the history of the "machine-or-transformation" test back to the Patent Act of 1793 especially interesting:
In fact, the unpatentability of processes not involving manufactures, machines, or compositions of matter has been firmly embedded in the statute since the time of the Patent Act of 1793, ch. 11, 1 Stat. 318 (1793).
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