ALEXANDRIA, Va., March 5 -- United States Patent no. 12,243,387, issued on March 4, was assigned to Acres Technology (Las Vegas).

"Reserve credits for use on gaming device" was invented by John F. Acres (Las Vegas).

According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments of the present invention are directed to methods and apparatus in which a player plays one of a plurality of networked gaming devices. Game awards below a predefined level are tracked and stored on the network. If the game awards are less than a predefined criterion, a pay command is sent over the network to the player's gaming device, which may be used for a free game. Implementation in a single gaming device is also disclosed."

The paten...