Isn't there also a recourse process by which you can get a patent invalidated? You can't expect USPTO to hire an expert in every single possible field.
I think that's usually resolved in court. By which I mean, I don't think there's process beyond choosing to fight any suit brought against you and hoping you win in court.
> I don't think there's process beyond choosing to fight any suit brought against you and hoping you win in court.
Not true. See https://en.wikipedia.org/wiki/Reexamination It's even easier today than a decade ago, though the Wikipedia article doesn't explain that aspect very well. (I wouldn't be able to explain it, either. I think it has to do with reduced ability for a patent owner to drag out review, including dragging it into court.) Probably not nearly easy enough, though.