Patent 7481709 was granted and assigned to IGT on January, 2009 by the United States Patent and Trademark Office.
A method for evaluating a player's award in a game wherein one symbol of the gaming device changes into another. In one embodiment, all awards for predetermined symbols and combinations thereof, including winning combinations produced by a wild symbol are provided to the player. In a second step, the game awards all awards for predetermined symbols and combinations thereof produced after the wild symbol has changed one or more non-wild symbols to a wild symbol. This step includes awarding the player for combinations previously awarded in the first step, which may or may not have been the result of the wild symbol.