09/28/2010 05:12 am ET | Updated May 25, 2011

Buffett's Dairy Queen Fights To Stop Rival From Selling Frozen Yogurt 'Blizz'

International Dairy Queen Inc, the ice-cream company owned by the billionaire investor's Berkshire Hathaway Inc, has asked a court to stop a southern California rival from selling a frozen yogurt with a name similar to Blizzard, its biggest-selling menu item.

Yogubliz Inc had on May 17 filed a lawsuit seeking an order that would "eliminate any doubt" its sale of Blizzberry and Blizz Frozen Yogurt products did not infringe any Dairy Queen trademark and was not likely to confuse customers.