ALEXANDRIA, Va., July 15 -- United States Patent no. 12,660,868, issued on June 23, was assigned to Coats Trading (UK) Ltd. (London).

"Combined phosphorescent, retroreflective and fluorescent article" was invented by Nicholas James Rowbottom (Crewe, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a combined phosphorescent, retroreflective and fluorescent article comprising a substrate, a phosphorescent layer on at least one side of the substrate and a retroreflective and fluorescent sheet provided over the phosphorescent layer, wherein the retroreflective and fluorescent sheet is configured so that at least 5% of visible area of said one side is phosphorescent."...