> The problem is when patents last too long or thing are patented that are obvious and should have failed that criteria. This. Particularly in software, if so

> The problem is when patents last too long or thing are patented that are obvious and should have failed that criteria. This. Particularly in software, if someone who doesn't know about the patent comes up with the idea independently, that should be prima facie evidence that the patent doesn't meet the criteria of not being obvious. Of course, the lack of knowledge of the patent may be subject to challenge, but this would eliminate a lot of ridiculous patents.