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The US court responsible for hearing patent appeals is showing fresh signs of disarray over the question of when software-based “inventions” can be patented. We recently covered a decision by the United States Court of Appeals for the Federal Circuit that upheld a patent on the idea of using a computer to perform a particular kind of financial transaction. Now, just a couple of weeks later, the same court has reached the opposite conclusion about a patent on using a computer to manage a particular type of life insurance policy.