ALEXANDRIA, Va., Feb. 11 -- United States Patent no. D1,112,681, issued on Feb. 10, was assigned to TECMEN ELECTRONICS Co. LTD (Nanjing, China).
"Powered air purifying respirator" was invented by Jun Chen (Nanjing, China).
The patent was filed on March 8, 2024, under Application No. D/931,854.
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