Which government ? Only US inventions ? No government can afford to lose a patent to another nation they would weaken their own economy by holding back.
I can see them not patenting military related technologies because in that case they would have to declare how it works and this wouldn`t be that great. But a privat person coming up with something there is no reason why they would do that. One single person is not able to invent something on the scale of a new engine that has a higher efficency. Companies and an army of scientists,engineers do.







