ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,502,651, issued on Dec. 23, was assigned to Active Minerals International LLC (Sparks, Md.).
"Product for PFAS adsorption" was invented by Bo Wang (Houston), Thomas Scott Cortner (Spring, Texas) and Dennis Parker (Victor, Idaho).
According to the abstract* released by the U.S. Patent & Trademark Office: "A product for adsorbing one or more PFAS from a liquid is disclosed. The product may comprise attapulgite or sepiolite that has been surface functionalized with (a) a quaternary amine surface coating solution that comprises a mono-quaternary amine compound or a di-quaternary amine compound and (b) a mercapto surface coating solution that comprises a surface coating agent that include...