ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,440,788, issued on Oct. 14, was assigned to KX Technologies LLC (West Haven, Conn.).
"Method and apparatus for metal removal from drinking water" was invented by William Li (Pittsburgh), Frank A. Brigano (Northford, Conn.), Blake E. Savoy (Killingworth, Conn.) and Christopher Thibeault (Wethersfield, Conn.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A single sheet water filter media for gravity filtration applications that improves flow performance over the product life while maintaining sufficient metal reduction, wherein at least two distinct density gradients of the single sheet form a physical barrier for capturing colloidal and insoluble contami...