ALEXANDRIA, Va., March 24 -- United States Patent no. 12,582,348, issued on March 24, was assigned to L'Oreal (Paris).

"Device and method for inspecting a hair sample" was invented by Tal Marcu (Clichy, France) and Thierry Wasserman (Clichy, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present application is directed to a device for inspecting a keratinous surface of a user, preferably a hair sample, comprising a housing in which an image sensor is arranged to receive measurement light emitted from a measuring area configured to accommodate the keratinous surface, through a measurement window in a front wall of the housing, over a corresponding imaging light path, the device being further equipp...