ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,437,174, issued on Oct. 7, was assigned to X-Celeprint Ltd. (Dublin).

"Hybrid documents with electronic indicia" was invented by Ronald S. Cok (Rochester, N.Y.) and Robert R. Rotzoll (Colorado Springs, Colo.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A hybrid document includes a flexible document having visible markings. One or more light-controlling elements and a controller are embedded in or on the flexible document. The controller is electrically connected to the one or more light-controlling elements to control the one or more light-controlling elements. A power input connection is electrically connected to the controller, or one or more light-c...