The "Bilski" case involved a patent application on methods for hedging against commodity price fluctuations, which the PTO had rejected. The Federal Circuit, in "In re Bilski", upheld the PTO's rejection on the grounds that the claims failed the machine-or-transformation test, which the court held should be used as the sole test of patent eligibility. The court did not hold that all business methods are patent ineligible, though a minority of the judges would have ruled that business methods are not properly the subject of patents.