ais523 writes "The Federal Circuit has divided CLS Bank vs. Alice Corp., a case about various sorts of patents, including software patents. Although the judges disagreed, to a lesser or greater extent, on the individual parts of the ruling, more than half decided that the patents in question — algorithms for hedging risk — were ineligible patent matter, and that merely adding an 'on a computer'-like clause to an abstract algorithm does not make it patentable. Further coverage is available at Groklaw, or you can read the opinion itself (PDF)."
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