I've often thought that a simple change would be to require you to prove that it is in the public interest for your patent to be enforced. Patents only exist f

I've often thought that a simple change would be to require you to prove that it is in the public interest for your patent to be enforced. Patents only exist for public benefit anyway. I don't think that a patent troll, for example, could prove that the world would be a better place by them enforcing their patents. If they could, then we'd be better off letting them do it (by definition).