ALEXANDRIA, Va., June 9 -- United States Patent no. 12,288,443, issued on April 29, was assigned to MULTI-STATE LOTTERY ASSOCIATION (Urbandale, Iowa).

"Lottery transaction processing system" was invented by Robert J. Nitz (Merritt Island, Fla.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A lottery transaction processing method is provided and includes receiving a lottery play request by a lottery play generation processor. The method further includes generating play information including a unique play serial number, and a play random number key, by the play generation processor, generating a play digital signature as a function of the play information and the play random number key by the play generation p...