ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,521,325, issued on Jan. 13, was assigned to Kao Corp. (Tokyo).
"Fragrance composition, scent dispenser and method for reducing malodor" was invented by Takeshi Yamakawa (Tokyo) and Beate Herzog-Renker (Darmstadt, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A fragrance composition which reduces malodor during chemical treatment of keratin fibers is described. The keratin fibers may be human keratin fibers, such as human hair. The fragrance compound comprises p-mentha-8-thiol-3-one, cis-3-hexenol, cis-3-hexenyl acetate, and allyl amyl glycolate and further comprises one or more organic solvents selected from the group consisting of benzyl alcoh...