US Patent Issued to Revlon Consumer Products on April 21 for "Compositions for dyeing keratin fibers" (Spanish, Italian, Portuguese Inventors)

ALEXANDRIA, Va., April 21 -- United States Patent no. 12,605,313, issued on April 21, was assigned to Revlon Consumer Products Corp. (New York).

"Compositions for dyeing keratin fibers" was invented by Blanca Puigdelloses Ferrer (Barcelona, Spain), Alex Tinarelli (San Giovanni, Italy), Julieta Paola Nava Mendoza (Aveiro, Portugal) and Olga Colom Vives (La Granada, Spain).

According to the abstract* released by the U.S. Patent & Trademark Office: "Compositions for dyeing keratin fibers are described. These dyeing compositions comprise, in a cosmetically acceptable medium, based on the total weight of the composition: (a) at least one anionic surfactant, (b) at least one cationic surfactant; (c) at least one alkoxylated C6-C24 fatty alcohol...