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Patents are supposed to be not obvious. Pinch to zoom it's an idea and shouldn't be patentable. The process of how you pinch to zoom is a different story though

• zmmmmm 7y ago
  Even then, I think the "process of pinch to zoom" is mostly about emulating nature and should be considered under the same idea as that you should not be able to patent a biological process. And if you say "well how you emulate is patentable" then I will say, there are only 2 choices: - there is only one way to implement it: then it is just an embodiment of the idea and shouldn't be patentable - there are multiple ways to implement it: then there is no point patenting them because somebody will just do it a different way and you have no protection ... except ... copyrights which are already what everyone uses for software.