Independent invention as evidence of obviousness. This is very similar to the idea above, but slightly more nuanced. Patents are only supposed to be given if something is both new and non-obvious to a person of ordinary skill in the art. For the most part, patent examinations focus much more on the “new” part, and not whether the idea is “non-obvious.” Some people think that if an idea is new then clearly it’s non-obvious, but that’s not the case. Often there are obvious ideas that don’t go anywhere because the technology/market/etc. just isn’t ready yet. But if a number of different people “of ordinary skill in the art” are all coming to the same solution at around the same time, that certainly suggestions the invention itself is an obvious next step, and all such patents should be declared invalid.

Actually asking those skilled in the art. Patent examiners are often very skilled and highly educated, but they’re working in the patent office, not out in the field innovating. It’s not as easy as many people think to really keep up on the state of the art if you’re not working on it. Just think how many ridiculous patents we see all the time. Many of those bad patents could have been prevented if a patent examiner just went to people in the field and asked them. I know that some people criticize this idea, because they claim that (1) everything looks obvious in hindsight and (2) this will just lead jealous others to insist something is obvious to deny a patent, and then copy the idea themselves. Neither of these are convincing. I’m not saying to just ask, and if someone says it’s obvious, the patent is dead. Rather, the patent examiner could ask a few people for an explanation of why it’s obvious, and then determine if the reasons are convincing. Already, inventors effectively have “advocates” who argue for them that a patent is valid, so why not create the same sort of thing on the other side — setting up a true adversarial process — by seeking out experts who can explain why something may be obvious.