ALEXANDRIA, Va., March 3 -- United States Patent no. 12,564,800, issued on March 3, was assigned to KEMFLO INTERNATIONAL Co. LTD. (Pingtung City, Taiwan).
"Backflow-preventing filter module" was invented by Sheng-Nan Lin (Pingtung City, Taiwan), Hao-Chan Wei (Pingtung City, Taiwan), Ming-Chieh Chung (Pingtung City, Taiwan) and Ming-Chung Lin (Pingtung City, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A backflow-preventing filter module includes a filter unit and a backflow-prevention valve. The filter unit includes a filter cartridge that has a connector formed with an annular groove, and a filter shell that defines an accommodating space and that includes a connecting head. The connecting head has...