ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,492,833, issued on Dec. 9, was assigned to MICROJET TECHNOLOGY Co. LTD. (Hsinchu, Taiwan).
"Vacuum cleaner for air pollution prevention" 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 vacuum cleaner for air pollution prevention includes a main body, a blower, a filtering and cleaning assembly, and a gas detection module. The main body is configured to form a flow-guiding path. The blower is disposed in the flow-guiding path to guide air convection. The filtering and cleaning assembly is disposed in the flow-guiding path to filter and clean...