Patent No. EP4240315 (titled "<Sup2/>? <Sub2/>?1?Agent For Dyeing Keratinous Material, Comprising Aminosilicone, A Chromophoric Compound And An Addition Product Of C-C <Ns2:Sub>6</Ns2:Sub>?Alkylene Oxide(S) To The Esters Of Fatty Acids And Aromatic Alcohols") was filed by Henkel on Oct 11, 2021. The application was issued on Aug 27, 2025.

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