ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,729,350, issued on Sept. 8, was assigned to United States of America as represented by the Administrator of NASA (Washington).

"Liquid detergent concentrate comprising an amphoteric/nonionic ternary surfactant mixture for use in removing perfluorinated polyethers (PFPEs) from parts" was invented by William Dudley Battle III (Huntsville, Ala.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid detergent concentrate has detergent builders that consist of sodium metasilicate pentahydrate and liquid sodium silicate, surfactants that consist of octyldimethylamine oxide, octyl iminodipropionate, and an alcohol ethoxylate having a hydrophilic-lipophilic ba...