ALEXANDRIA, Va., May 19 -- United States Patent no. 12,630,759, issued on May 19, was assigned to Pest Tracks Inc. (Hollywood, Fla.).

"UV-LED reactive solution" was invented by Timothy John Lambrecht (Dania Beach, Fla.) and Edgar Ambriz (Irvine, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A UV-LED solution comprising an optical brightener, a thickener, and glycerin. The solution can further comprise preservative(s), water and/or alcohol to aid in evaporation of the water or other carrier used for spray or brush application. The solution has adhesive properties, is colorless and odorless and visible when subject to UV light or black light. The solution can be used for tracking purposes, including tr...