ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,383,482, issued on Aug. 12, was assigned to Wella Germany GmBH (Darmstadt, Germany).
"Hair coloring compositions" was invented by Viktoriya Sendyureva (Frankfurt am Main, Germany), Manfred Guenther Schmitt (Bensheim, Germany), Frank Veverka (Zwingeberg, Germany), Felix Herkner (Eppstein, Germany) and Bjorn Timo Hoffmann (Darmstadt, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "It is provided a kit for obtaining a hair coloring composition, a hair coloring composition, and a method for treating hair. The hair coloring composition particularly provides the desired color shade and intensity, together with an enhanced root to tip evenness on hair, ...