ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,544,946, issued on Feb. 10, was assigned to The Gillette Co. LLC (Boston).
"Method of treating razor blade cutting edges" was invented by Ronald Richard Duff Jr. (Shrewsbury, Mass.) and John Joseph Nisby (Hanson, Mass.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of manufacturing a razor blade cutting edge, the method including: applying a single coating of a polymer material to the razor blade cutting edge to form a coated blade edge; selecting a temperature profile, where the temperature profile has a temperature and a time, and wherein the temperature profile is selected based on a composition of the razor blade cutting edge; heating the c...