US Patent Issued to THE BOEING on April 15 for "Methods and systems for indicating a sanitation status of a surface" (Washington Inventors)

ALEXANDRIA, Va., June 5 -- United States Patent no. 12,274,806, issued on April 15, was assigned to THE BOEING COMPANY (Arlington, Va.).

"Methods and systems for indicating a sanitation status of a surface" was invented by Gwen Marie Lanphere Gross (Redmond, Wash.), Xiaoxi Wang (Mukilteo, Wash.) and Kjersta L. Larson-Smith (Seattle).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for indicating a sanitation status of a surface may comprise contacting a coating on a surface with a cleaning composition, wherein the coating comprises a chromic material and exhibits a baseline optical state under illumination with light having a first wavelength prior to contact with the cleaning composition and an altere...