Appeals court ruling could be 'death' of software patents05.10.2013 1:13 PMA U.S. appeals court has ruled that an abstract idea is not patentable simply because it is tied to a computer system, signaling what one judge described as the "death" of software and business method patents.The ruling in CLS Bank v. Alice gives "staggering breadth to what is meant to be a narrow judicial exception" on patent ineligibility, she wrote. "And let's be clear: if all of these claims, including the system claims, are not patent-eligible, this case is the death of hundreds of thousands of patents, including all business method, financial system, and software patents as well as many computer implemented and telecommunications patents."