ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,397,180, issued on Aug. 26, was assigned to Kuo Yu-Mei (Tainan, Taiwan).
"Open type breathing-out particles capture and filtration device" was invented by Yu-Mei Kuo (Tainan, Taiwan), Sheng-Hsiu Huang (Taoyuan, Taiwan), Chih-Wei Lin (New Taipei, Taiwan) and Chih-Chieh Chen (New Taipei, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An open type breathing-out particles capture and filtration device includes a mask having an air-in space defined between an upper edge of the mask and a user's face; a suction assembly including an air expelling pipe communicable with the air-in space and a fan; filtering materials located upstream of the fan; and a p...