ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,545,857, issued on Feb. 10, was assigned to The Procter & Gamble Co. (Cincinnati).

"Amphiphilic alkoxylated polyamines and their uses" was invented by Sophia Rosa Ebert (Mannheim, Germany), Joerg Nieberle (Ludwigshafen, Germany), Ouidad Benlahmar (Mannheim, Germany), Catharina Wohlmuth (Ludwigshafen, Germany), Susanne Carina Engert (Ludwigshafen am Rhein, Germany), Guido Vandermeulen (Ludwigshafen, Germany), Holger Tuerk (Ludwigshafen am Rhein, Germany), Frank Huelskoetter (Birkenheide, Germany), Gang Si (Newcastle upon Tyne, Great Britain), Katarzyna Gorczynska-Costello (Newcastle upon Tyne, Great Britain), Pieter Jan Maria Saveyn (Brussels) and Natalia Stergiopoulou (Brussels).

Acc...