Re: The lawyers will be fine.
Sorry, but I can't let your first sentence pass without comment.
Ideas are patentable.
Art is not patentable. It falls under the IP of copyright.
The U.S. has certainly confused copyright and patents with the issue of IP protection for software. Mostly software is considered to be copyrighted (the GPL is a copyright licence after all), but in the U.S. it can be patented. This does appear, as you highlight, to mainly be for the benefit of lawyers.