Earlier quoted context omitted.
In code, not end product. You can reverse engineer code all day, but your end product better not end up looking identical to the protected work. I could set a thousand AI machines in a clean room generating new song lyrics. Eventually one of them will randomly come up with identical lyrics to a Taylor Swift song. That doesn't mean I now own those lyrics free and clear. "Technically, I didn't copy " isn't a defense wh…
I'm just pointing out that your statement was 100% incorrect in every single possible setting. A clean room is NEVER a possible defense for patents and it is sometimes a possible defense for copyright.
Except if you are going for obviousness you want to start with people who haven't seen the patented material. You put them in the metaphorical clean room and then argue the patent invalid because some rando people came up with the same solution to the problem. And for prior art you need a group of "clean" people who were using the process/device prior to the patent, which is especially useful when dealing with trade secret material that, fearing a leak, a competitor is trying to patent. You need people clean of any taint from that competitor.