ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,491,463, issued on Dec. 9, was assigned to COWAY Co. Ltd. (Chungcheongnam-do, South Korea).
"Air cleaner" was invented by Hyun Jin Hong (Chungcheongnam-do, South Korea), Il Soo Jeon (Chungcheongnam-do, South Korea) and In Kyu Back (Chungcheongnam-do, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure is directed to an air cleaner capable of improving cleaning convenience of a filter module. The air cleaner includes a filter module detachably coupled to a housing. The filter module includes a detachable unit having a filter net in one portion and a cleaning unit configured to be relatively rotatable with respect to the filte...