The TTAB Just Decided: Tribal Immunity Can't Shield a Trademark Registration

Last month, the Trademark Trial and Appeal Board answered a question it had never answered before: can a tribe invoke sovereign immunity to make a trademark cancellation case go away? The answer was no — and the reasoning has lessons for every brand owner, not just tribal ones.

In Philip Morris USA Inc. v. IP Services International Inc. and Sycuan Tribal Development Corporation, Cancellation No. 92063134 (TTAB 2026) [Precedential], decided in September 2026, the Board denied a motion to dismiss Philip Morris's petition to cancel four registrations for word-and-design marks covering cigarettes and smoking tobacco. The grounds for the cancellation were two of the most common vulnerabilities in the system: nonuse and naked licensing.

Here's what makes the case interesting. After Philip Morris filed its cancellation petition, the four marks were assigned to Sycuan Tribal Development Corporation, a tribally owned entity. Sycuan then argued that the proceeding had to be dismissed because tribes enjoy sovereign immunity from suit without their consent. In effect, the registrations were moved into a shelter the challenger supposedly couldn't enter.

The Board didn't buy it. Not only did it deny the motion — it made the decision precedential, meaning it now binds future Board proceedings.

If you run a business with a trademark portfolio, here's why you should care: this ruling shuts down an entire category of gamesmanship. If immunity worked, any registration in trouble could be sold to a tribe or a tribal entity to freeze out challengers — insulating dead marks from cancellation and polluting the federal register. The Board said that outcome would contravene the very letter and purpose of the Trademark Act.

Why this matters

First, it closes the immunity loophole for good. The Board's reasoning is thorough and layered. It followed Federal Circuit precedent holding that tribal sovereign immunity doesn't apply in Patent Trial and Appeal Board inter partes reviews (St. Regis Mohawk Tribe v. Mylan Pharm. Inc.) and that state sovereign immunity doesn't apply in TTAB opposition proceedings (Mountain Gateway Ord., Inc. v. Va. Cmty. Coll. Sys.). The Board saw no reason to treat tribal immunity differently here. A tribe that applies for registration — or acquires a registration by assignment — subjects itself to the Trademark Act's opposition and cancellation provisions, the same as everyone else.

Second, it draws a clean line between real lawsuits and Board proceedings. TTAB proceedings don't exercise personal jurisdiction over the registrant, don't award money damages, and don't issue injunctions. They decide only one thing: the right to obtain or maintain a registration on the federal register. Because of that, the Board concluded, a tribe's sovereignty over its members and territory remains undiminished by having to defend a registration before the Board. The takeaway generalizes: the lighter and more administrative the proceeding, the less room there is to hide behind immunity defenses.

Third, the underlying cancellation is still going forward — and the grounds are ordinary. Nonuse and naked licensing are not exotic theories; they are the everyday risks of sloppy portfolio management. Naked licensing — letting others use your mark without meaningful quality control — can abandon your rights outright. Nonuse is the same ground that killed the EVERWISE CREDIT UNION registration earlier this year in the Board's first reexamination review. The Sycuan case is really about whether a registrant can dodge those ordinary consequences with an extraordinary maneuver. The Board's answer: no.

How to apply it in practice

• Audit your registrations for real, documented use. If you're not using the mark on the goods or services listed — or you can't prove you were using it as of the relevant date — the registration is vulnerable to cancellation or reexamination regardless of who technically holds it. Transferring a dead registration doesn't revive it.

• Put quality-control teeth in every license. Naked licensing abandons rights. Every trademark license should require the licensee to maintain quality standards, give you inspection or approval rights, and provide for termination if standards slip — and you should actually enforce those terms.

• Don't rely on assignment tricks to dodge a challenge. Whether it's moving a mark to a related entity, a tribe, or anyone else, the Board looks at the substance of the maneuver. An assignment made to freeze out a challenger won't save a registration that was vulnerable before the assignment — and, as this case shows, it can add years of litigation over the attempt.

The Trademark Act runs on a simple bargain: the federal government gives you exclusive rights in your mark, and in exchange your registration stays open to challenge so the register reflects only marks that actually function as trademarks. The TTAB's tribal-immunity decision is the Board defending that bargain — against one of the cleverest attempts yet to break it.