ALEXANDRIA, Va., April 21 -- United States Patent no. 12,605,322, issued on April 21.

"Shampoo composition with non-sulfate surfactant and complexation compound forming a coacervate" was invented by Christian Springob (Lorsch, Germany), Marion Stuess (Griesheim, Germany), Malte Dirk Benjamin Koch (Taunusstein, Germany), Antonio Martinez-Campoy (Russelsheim, Germany) and Esther Mattke (GroB-Gerau, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A non-sulfate shampoo is disclosed. The shampoo incorporates at least one non-sulfate surfactant selected from a taurate salt and a sarcosinate salt, and in addition incorporates a complexation compound. The shampoo produces a coacervate upon dilution with water...