ALEXANDRIA, Va., July 28 -- United States Patent no. 12,694,757, issued on July 28, was assigned to LNW Gaming Inc. (Las Vegas).
"Gaming system and method with an expanding symbol array feature" was invented by Richard Milosevich (Las Vegas), Kenneth Shawn Soong (Henderson, Nev.) and George Bouvier (Henderson, Nev.).
According to the abstract* released by the U.S. Patent & Trademark Office: "There is provided a gaming system and methods that utilize a presentation assembly configured to present a series of spins of a plurality of symbol-bearing reels arranged in multiple arrays. Upon the appearance of a catalyst symbol on one of the reels, at least one additional row of symbols is added between the arrays to join the arrays into a single ...