ALEXANDRIA, Va., June 19 -- United States Patent no. 12,333,909, issued on June 17.
"Electronic gaming systems and methods" was invented by Aimin Cong (Las Vegas).
According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and method for providing a slot-type game in which a game outcome is reached that includes an active area and an inactive area, with any awards being determined by the position of randomly generated symbols in the active area, the active area increasing in size to include additional positions of randomly generated symbols from the inactive area responsive to an occurrence of a triggering event, wherein the triggering event is based on the satisfaction of a preset criteria associated with the act...