ALEXANDRIA, Va., July 28 -- United States Patent no. 12,693,039, issued on July 28, was assigned to MICROJET TECHNOLOGY Co. LTD. (Hsinchu, Taiwan).

"Conception of locating and completely cleaning indoor air pollution" was invented by Hao-Jan Mou (Hsinchu, Taiwan), Yung-Lung Han (Hsinchu, Taiwan) and Chi-Feng Huang (Hsinchu, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A conception of locating and completely cleaning indoor air pollution is provided. A plurality of physical or chemical first devices are disposed to determine characteristics, concentrations and locations of air pollution. A fan, a physical second device or a chemical second device is selected and enabled in accordance with the positio...