I believe PRI and SEMA have addressed this, but likely only for companies that have ponied up to be members.

I recall a number of years ago at PRI. There were two Chinese ladies had a table in a booth towards the back of the hall. Had a number of parts, CNC machined bits, etc, laid out that looked like name brand stuff. Rocker arms, fittings, odds and ends. Pretty blatantly advertising reverse engineering of stuff to be labeled as your own. They were largely ignored as far as I could see. I guess someone stopped to chat.