ALEXANDRIA, Va., Dec. 25 -- United States Patent no. 12,175,841, issued on Dec. 24, was assigned to Aristocrat Technologies Inc. (Las Vegas).

"Bonus round for video keno game" was invented by Daniel Mirjavadi (Las Vegas), John Daley (Las Vegas), Christopher Brune (Carson City, Nev.) and David Kaminkow (Las Vegas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A bonus round of a video keno game may consist of a series of bonus game instances. During a bonus game instance, a game controller may identify a set of bonus game pieces and select a set of bonus outcome identifiers from a bonus outcome pool. A win amount may be determined based on the number of matches between the set of bonus outcome identifiers and ...