Whether a TTAB finding of likelihood of confusion can preclude relitigation of that issue in a trademark infringement suit.
Holding
Yes. A TTAB decision should have preclusive effect when the usages it adjudicated are materially the same as those before the district court and the ordinary requirements of issue preclusion are met.
Reasoning
Issue preclusion generally prevents parties from relitigating an issue actually litigated, necessarily decided, and resolved by a valid, final judgment. Agency decisions can have that effect when the parties had an adequate opportunity to litigate. Congress is presumed to permit such preclusion unless a contrary statutory purpose is evident.
Nothing in the Lanham Act displaces that presumption. Registration and infringement are separate proceedings that determine separate rights; registration is not a required step before an infringement suit. Nor does the option of de novo judicial review prevent an unchallenged TTAB decision from becoming final.
Registration and infringement use the same likelihood-of-confusion standard, even though the TTAB and the Eighth Circuit organize their analyses around different factors. The critical limit is factual: the TTAB often assesses the usages described in a registration application, while an infringement court considers marketplace use. If those usages are materially different, the Board has not decided the same issue and preclusion does not apply.
Differences in procedure do not categorically make TTAB decisions unfair or unreliable. TTAB proceedings allow discovery and sworn testimony, and B&B bore the burden of persuasion there just as it did in the infringement suit. The substantial benefits of registration also give parties reason to litigate an opposition seriously.
The Court reversed the Eighth Circuit’s categorical rejection of preclusion and remanded. It did not decide whether every requirement for preclusion was satisfied in this particular infringement suit.