United States Supreme Court
The Lanham Act's restriction on registering trademarks consisting of a living person's name without their consent does not violate the First Amendment.
Vidal v. Elster held that the Lanham Act's prohibition on registering trademarks incorporating the name of a living person without their consent is a constitutional content-based restriction on speech, as it is grounded in a sufficient historical tradition of protecting persons from unwanted commercial use of their identity.