ALEXANDRIA, Va., June 25 -- United States Patent no. 12,337,492, issued on June 24, was assigned to The Gillette Co. LLC (Boston).
"Shaving razor demonstration method" was invented by Joseph Lorenzo Whitmore IV (Johnston, R.I.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A shaving demonstration method may involve providing at least a first shaving razor having a first shaving surface with a first lubrication member; exposing the first lubrication member to a composition of water and a fluorescent dye; engaging at least a first sheet of paper with at least the first lubrication member; causing relative motion between the first lubrication member and the first sheet of paper; and exposing the first sheet of ...