B&B Hardware, Inc. v. Hargis Industries, Inc.

**Question presented** Should a federal district court treat the Trademark Trial and Appeal Board’s (TTAB) decision that two marks are “confusingly similar” as binding (i.e., apply issue‑preclusion or collateral‑estoppel) when the same parties later litigate the same confusion issue in a trademark‑infringement lawsuit, provided the normal requirements for issue‑preclusion are satisfied? **Holding** The Supreme Court answered **yes**. It held that, when the ordinary elements of issue‑preclusion are met and the “usages” the TTAB decided are materially the same as those before the district court, the TTAB’s decision can be given preclusive effect. In other words, a court must treat the TTAB’s finding on likelihood of confusion as final and cannot relitigate the same issue. **Core reasoning in plain English** 1. **Congress’s expectation** – The Court said that when Congress gives an agency (here, the U.S. Patent and Trademark Office) the power to settle disputes, it is generally assumed that the agency’s decisions will count as final unless the law says otherwise. The Lanham Act (the trademark law) does not forbid issue‑preclusion, so the presumption applies. 2. **Same legal test** – Both the registration process before the TTAB and a trademark‑infringement suit use the same “likelihood‑of‑confusion” test. The statutes use slightly different wording (“resemble” for registration, “use in commerce” for infringement), but the Court said that when the parties’ actual uses of the marks are the same, the substance of the question is identical. 3. **Procedural differences don’t block preclusion** – The fact that the TTAB and a court follow different procedures (different forms, oral arguments, etc.) does not automatically mean the TTAB’s decision is unreliable. The Court noted that the TTAB’s procedures are largely comparable to those in federal court, and that the burden of proof was the same for the parties in both forums. 4. **Weight of a registration decision** – Registering a trademark gives the owner important legal rights and benefits, so a decision about whether a mark should be registered is not a trivial matter. That importance supports treating the TTAB’s ruling as something that can preclude later litigation on the same issue. **Vote breakdown** - **Majority (7 justices)** – Justice Alito wrote the opinion, joined by Chief Justice Roberts and Justices Kennedy, Ginsburg, Breyer, Sotomayor, and Kagan. - **Concurring** – Justice Ginsburg also filed a separate, agreeing opinion. - **Dissent (2 justices)** – Justice Thomas wrote a dissent, joined by Justice Scalia. **Dissent’s reasoning (in simple terms)** Justice Thomas argued that the Lanham Act treats registration and infringement as different kinds of disputes. Registration asks whether the marks “resemble” each other, while infringement looks at actual “use in commerce.” Because the statutory language and the purposes of the two proceedings differ, he said the TTAB’s decision should not automatically bar a later court from reconsidering the confusion issue.