ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,550,992, issued on Feb. 17, was assigned to L'Oreal (Paris).
"Formula delivery appliance" was invented by Gregoire Charraud (Jersey City, N.J.), Juwan Hong (Jersey City, N.J.) and Rafael Feliciano (New Providence, N.J.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A formulation delivery appliance can be used for treatment of the hair and scalp, such as an appliance used to color hair. The appliance may include a container having an aperture and being configured to retain a volume of formulation. The formulation delivery appliance may further include an elongate engagement element having a channel extending therethrough and being configured to be at lea...