Trademarks

When the Board Speaks First: B&B Hardware and the Preclusive Reach of TTAB Decisions

The Supreme Court holds that a Trademark Trial and Appeal Board likelihood-of-confusion ruling can bind a federal court in later infringement litigation.

March 17, 2025
Rows of metal fasteners and screws on an industrial workbench
A fight over self-sealing fasteners produced the most consequential ruling on the weight of TTAB decisions in a generation. Shutterstock
Educational content, not legal advice. This article explains general legal concepts. It does not create an attorney–client relationship. For your specific situation, consult a licensed attorney.

In B&B Hardware, Inc. v. Hargis Industries, Inc., 575 U.S. 138 (2015), No. 13-352 (decided March 24, 2015), the U.S. Supreme Court answered a question that had quietly divided the lower courts for years: what happens in a federal infringement suit after the Trademark Trial and Appeal Board has already decided that two marks are likely to be confused? By a 7-2 vote, in an opinion by Justice Alito, the Court held that a Board decision can carry issue-preclusive effect in subsequent court litigation — provided the ordinary elements of issue preclusion are satisfied and the uses the Board adjudicated are materially the same as those before the court. The ruling elevated what many practitioners had treated as a low-stakes registration skirmish into a proceeding capable of deciding the infringement war.

At a glance

  • Case: B&B Hardware, Inc. v. Hargis Industries, Inc., 575 U.S. 138 (2015), No. 13-352.
  • Decided: March 24, 2015; opinion by Justice Alito, joined by Roberts, Kennedy, Ginsburg, Breyer, Sotomayor, and Kagan. Justice Ginsburg filed a concurrence; Justice Thomas dissented, joined by Justice Scalia.
  • The marks: B&B’s SEALTIGHT (aerospace fasteners) and Hargis’s SEALTITE (self-drilling, self-tapping screws for the metal-building trade).
  • Procedural posture: The TTAB sustained B&B’s opposition, finding a likelihood of confusion and refusing registration of SEALTITE. Hargis did not seek judicial review. In parallel infringement litigation, the district court declined to give the Board’s finding preclusive effect, and the Eighth Circuit affirmed.
  • The holding: A court should give preclusive effect to a TTAB likelihood-of-confusion determination when the usages adjudicated by the Board are materially the same as those before the court and the standard elements of issue preclusion are met. Reversed and remanded.

The collision of two tribunals

The case grew out of a long-running rivalry between two companies selling fasteners under near-homophones. B&B registered SEALTIGHT and, when Hargis applied to register SEALTITE, opposed the application. The Board sided with B&B, concluding that the marks were confusingly similar and denying registration. Hargis let the decision stand rather than appealing to a district court or the Federal Circuit.

The companies were simultaneously fighting in federal court over infringement. There, B&B argued that the Board had already resolved the central question — likelihood of confusion — and that Hargis should not get to relitigate it. The district court disagreed and let a jury find no likelihood of confusion. The Eighth Circuit affirmed, reasoning in part that the Board is not an Article III court and that it weighs different factors than a district court does. That tension — between an administrative registration tribunal and a court adjudicating marketplace conduct — was the question the Supreme Court took up.

”The same likelihood-of-confusion standard”

The majority’s analysis began from a default principle of administrative law: when Congress authorizes an agency to adjudicate disputes, courts presume that the agency’s resolutions can have the same preclusive effect as a court’s, absent a contrary statutory purpose. Nothing in the Lanham Act, the Court found, evinced an intent to exempt TTAB decisions from ordinary preclusion rules. The Act’s provision for judicial review of Board decisions did not imply that an unreviewed decision is a nullity; if anything, the availability of review cut the other way.

The harder objection was that the Board and a district court ask subtly different questions. Registration turns on the mark as depicted in the application and the goods as described in it; infringement turns on how the mark is actually used in the marketplace. Justice Alito’s opinion did not dismiss that distinction — it built the holding around it. The operative legal standard, the Court emphasized, is the same: both forums ask whether confusion is likely, and the multifactor inquiries they use are substantially congruent. Preclusion therefore applies, but only when “the usages adjudicated by the TTAB are materially the same as those before the district court.” Where the Board considered uses that diverge materially from the defendant’s actual marketplace conduct, the issues are not identical and preclusion does not follow.

That qualifier is the heart of the decision’s practical operation. It converts the preclusion question into a factual comparison: did the Board decide the same dispute, on materially the same uses, that the court now confronts? When the answer is yes, the Board’s finding controls. When the registration contest turned on abstract or hypothetical uses untethered from the real-world marketing at issue in court, it does not.

The dissent’s institutional warning

Justice Thomas, joined by Justice Scalia, dissented on grounds rooted in separation of powers and the presumption against handing Article III adjudicative force to non-Article III bodies. He questioned the majority’s premise that courts have a settled tradition of according collateral-estoppel effect to administrative findings, and he worried about the consequences of letting an agency proceeding — often litigated as a modest, document-heavy registration matter — foreclose the right to a jury determination of infringement liability.

The disagreement is less about trademark doctrine than about how much weight an administrative record should bear. The majority trusted the ordinary machinery of issue preclusion, with its identity-of-issues and full-and-fair-opportunity safeguards, to screen out unfair applications. The dissent doubted those safeguards could adequately police the gap between a registration record and a full infringement trial. Both concerns have proven durable in the years since, as litigants and courts work out where the “materially the same” line falls.

Implications

  • Opposition and cancellation proceedings now carry trial-level stakes. A party that treats a TTAB contest as a low-cost paper exercise risks being bound on likelihood of confusion in later court litigation. The record built before the Board may become the record that decides infringement.
  • Frame the goods and uses deliberately. Because preclusion attaches only when the adjudicated usages are materially the same as the marketplace uses, applicants and opposers should think carefully about how broadly or narrowly the goods and services — and the actual uses in evidence — are described and litigated.
  • Reconsider whether to appeal an adverse Board ruling. Declining to seek review, as Hargis did, can lock in an unfavorable finding. The decision to forgo a district court action or Federal Circuit appeal is now a strategic inflection point, not a housekeeping choice.
  • Litigants should invest in the Board record. Discovery, expert evidence, and the framing of the DuPont/Sleekcraft-type factors before the Board can pay dividends — or impose costs — far beyond the registration question.
  • Expect “materially the same” to be the battleground. Most post-B&B disputes turn not on whether preclusion is available in theory but on whether the Board actually decided the same use dispute, making that factual comparison the recurring fight.

Open questions

  • How wide is the “materially the same” exception? The Court left lower courts to develop the standard case by case, and outcomes vary with how closely the registration uses track the marketplace uses.
  • Does the holding run in both directions? Whether — and how readily — a defendant can invoke a favorable Board ruling defensively against a trademark owner remains an active area of litigation.
  • What about other Board determinations? The decision addressed likelihood of confusion; its logic may extend to other issues the Board resolves (such as descriptiveness or priority), but the reach is not fully settled.
  • How does it interact with the right to a jury? The dissent’s concern about foreclosing jury determinations of infringement continues to shape arguments about when preclusion is fair.

Frequently asked questions

Does every TTAB decision now bind a later court? No. Preclusion applies only when the ordinary elements of issue preclusion are met and the uses the Board adjudicated are materially the same as those before the court. Where the registration contest turned on uses that differ materially from the defendant’s actual marketplace conduct, the issues are not identical and the Board’s finding does not control.

Why did it matter that Hargis never appealed the Board’s decision? Because Hargis did not seek judicial review, the Board’s likelihood-of-confusion finding became final. The Supreme Court’s holding meant that final, unreviewed finding could then preclude Hargis from relitigating the same issue in court.

What should a party do differently after B&B Hardware? Treat opposition and cancellation proceedings as potentially dispositive. Build a thorough record, frame the goods and uses with litigation consequences in mind, and weigh seriously whether to appeal any adverse Board ruling rather than letting it become final.

Authorities and sources