ALEXANDRIA, Va., March 17 -- United States Patent no. 12,576,016, issued on March 17, was assigned to L'OREAL (Paris).

"Composition containing 4-(3-ethoxy-4-hydroxyphenyl)butan-2-one, a preservative and/or antioxidant, a surfactant and a polymer, and the method for processing keratin materials from the composition" was invented by Isabelle Bossant (Chevilly Larue, France) and Sonia Eyraud (Chevilly Larue, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a composition comprising i) at least one 4-(3-ethoxy-4-hydroxyphenyl)butan-2-one compound; ii) at least one preserving agent other than i) and/or antioxidant; iii) at least one surfactant chosen from the surfactants; iv) ...