Katrina Hull

The U.S. Supreme Court ruled on March 24 that Trial Trademark and Appeal Board (TTAB) decisions “can be weighty enough” to preclude a district court from litigating the likelihood of confusion between trademarks in a subsequent infringement suit. The decision in B&B Hardware, Inc. v Hargis Industries, Inc. may not settle the nearly 20-year dispute between the owners of the SEALTIGHT and SEALTITE marks; however, the ruling is likely to increase the importance of TTAB proceedings. In certain circumstances, federal district courts may be bound by TTAB determinations that trademarks are confusingly similar under the doctrine of issue preclusion. Issue preclusion prevents the same issues from being litigated more than once, saving time and resources.