ALEXANDRIA, Va., April 15 -- United States Patent no. 12,599,212, issued on April 14, was assigned to L'OREAL (Paris).
"Method for treating the hair" was invented by Sandy Lapize (Saint-Ouen, France), Melissa Champeaux (Saint-Ouen, France) and Diana Hejjaoui (Clichy, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for treating the hair with the aid of a treatment device, notably a heat treatment device, in particular a straightening device, in which a lock of hair is exposed, while the device is being moved along the latter, in a single operation to: apply cosmetic composition with the aid of an application member of the device, and then to apply steam with the aid of a steam outlet of the dev...