Brand Battles: Major League Baseball, Mattel, Yelp

By Bill Donahue (May 20, 2016, 7:27 PM EDT) -- In Law360's latest roundup of new actions at the Trademark Trial and Appeal Board, three Major League Baseball clubs that all use "P" team up to keep the letter free for everyone, Mattel files separate cases over both Barbie and Ken, and Yelp is accused of using a confusingly similar advertising tag line....

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