Obviously Lucas doesn't have a trademark on levitation, and even if he claimed that he does he doesn't really believe it. If he did he would be suing every TV show or movie that featured levitation and he doesn't do that.
The real problem here is that this company used "Jedi" in their name, which is clearly copyright infringement. Suing them for that isn't really much of a douche move at all. They should just change their name and everyone is happy.
The real problem here is that this company used "Jedi" in their name, which is clearly copyright infringement. Suing them for that isn't really much of a douche move at all. They should just change their name and everyone is happy.