The Detroit Tigers filed a trademark opposition with the USPTO TTAB against Leonard's Fountain Specialties' application for DETROIT CITY SODA CRAFT BREWED SINCE 1964. The plaintiff claims the soda company's mark is likely to cause confusion with existing Detroit Tigers trademarks. This opposition initiates an administrative proceeding before the TTAB, which serves as the tribunal for resolving trademark disputes.

Affected parties include the trademark applicant (Leonard's Fountain Specialties), the opposing party (Detroit Tigers), and their respective legal representatives. If the opposition succeeds, the defendant may be unable to register the mark, potentially requiring rebranding of the soda product. The TTAB process typically involves discovery, testimony periods, and briefs before a final decision.