There is a particular issue with software though. A software patent for the one-click-buy is more like a patent for explosive powder, rather than the exact com

There is a particular issue with software though. A software patent for the one-click-buy is more like a patent for explosive powder, rather than the exact composition of gunpowder. It is more like a drug to reduce brain swelling, which would not be patentable because the implementation is not obvious. With software, there are many ways to implement the same feature, so you can implement something in an entirely novel way and yet infringe a patent. Patenting the workings of an internal combustion engine is one thing, patenting a horseless carriage is another.