ALEXANDRIA, Va., June 16 -- United States Patent no. 12,656,003, issued on June 16, was assigned to Apicem Technology Services Co. Ltd. (Hong Kong).
"Air purifying system" was invented by Ahim Kho (Hong Kong) and Ho Man Kan (Hong Kong).
According to the abstract* released by the U.S. Patent & Trademark Office: "An air purifying module for use in air channel of an air handling unit of a central air conditioning system, comprising a first housing having air inlet surface and air exhaust surface to enable airflow, a panel member that is detachably installed in the first housing, the panel member comprises filter panel, two metal foam panels and a number of photocatalyst coated metal foam panels arranged in parallel in the direction from the ...