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have warped the intent and operation of the system in the USA.

Under the old rules you couldn't even lodge for a patent unless you had a working model, full set of plans, and detailed write up of exactly how and where it would be used. All that did require R&D expenditure, but the current USA system makes a mockery of all that and they even allow people to patent acts of nature.

Patents as a concept are not a problem, they warped way the USA patent laws and patent office operate are the problem. Hell, I doubt a single one of the IT patents involved in the patent trolling or recent court cases would be allowed as a patent application in most other countries.