ALEXANDRIA, Va., March 19 -- United States Patent no. 12,251,646, issued on March 18, was assigned to WeCool Toys Inc. (Point Pleasant, N.J.).
"UV-light drawing activity" was invented by Jeffrey Osnato (Medford, N.J.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An invisible tracing or drawing activity utilizes a universal self-adjusting UV lamp which forms part of or can attach to a grip which slides onto most writing instruments. The grip is flexible and can stretch to adjust so as to accommodate various sizes of drawing utensils. Blueish (UV) light will reveal hidden artwork that can be traced, drawn, or colored within. Coloring books act as collections of different and unique hidden artwork that can occ...