The makers of Samuel Adams beer have called their product “the best beer in America” for almost 15 years. But the U.S. Court of Appeals for the Federal Circuit held this week that the Boston Beer Company Limited Partnership, the microbrewer that produces the beer, can’t claim exclusive rights to those words.

In a Dec. 7 ruling, the Federal Circuit, upholding the findings of a trademark examiner and the Patent and Trademark Office’s Trademark Trial and Appeal Board, turned down Boston Beer’s application for a trademark for the words.