The U.S. Supreme Court may rule sooner than expected on whether the Washington Redskins are entitled to trademark protection for their controversial name. The outcome, we hope, will be a holding that the U.S. Patent and Trademark Office may not withhold trademark protection from a business or product just because its name is offensive.

“Redskins” certainly is offensive to American Indians and demeaning to the team and its fans. We have urged the owners to find a new name. But the legal issue is whether the First Amendment was violated in 2014 when the patent office canceled the Redskins’ trademark registration, citing a law that prohibits trademark protection for names that “may disparage … persons, living or dead, institutions, beliefs, or national symbols, or bring them into contempt or disrepute.”

A federal district judge upheld the patent office’s ruling in the Redskins case. But a federal appeals court in Washington came to the opposite conclusion last December when it ruled that the patent office wrongly denied trademark registration to The Slants, a dance rock band whose name is intended to comment ironically on a slur against Asian-Americans.

Now the football team is asking the justices to fast-track its appeal if they also take up the federal government’s appeal of the decision in favor of The Slants. The court should resolve both cases in favor of the trademark applicants.

In defending the constitutionality of the so-called disparagement clause, the Justice Department notes that a denial of trademark registration does not actually prohibit any speech or bar the team from calling itself the Redskins.

But that’s not the point. Trademark registration provides certain benefits to the holder that shouldn’t be dependent on whether or not the government likes the message a particular name conveys. As the appeals court concluded in the case of The Slants’ trademark, withholding registration for that reason amounts to “viewpoint discrimination” in violation of the First Amendment.

No doubt some people regard names like “Redskins” and “The Slants” as not just offensive but hateful. But under the First Amendment, government may neither outlaw their use or punish businesses that use such language. The purpose of the trademark system is to protect property rights, not to establish an index of forbidden words.