The name "Whopper" is a registered trademark of Burger King Holdings and is displayed with the "circle-R" (®) symbol in all markets in which it is sold.[Notes 1] The name Whopper Jr. is a registered trademark in the US, Canada and Europe.[Notes 2] Other Whopper-related trademarks owned by Burger King include "Home of the Whopper", "It takes two hands to handle a Whopper", "Whopper Bar", "Whoppertime" and "Angry Whopper".[Notes 3]