ALEXANDRIA, Va., Aug. 26 -- United States Patent no. D1,090,819, issued on Aug. 26, was assigned to BMC (Tianjin) Medical Co. Ltd. (Tianjin, China).
"Frame for respiratory mask" was invented by Yajie Wang (Tianjin, China), Erliang Li (Tianjin, China), Peng Zhu (Tianjin, China), Mingzhao Zhou (Tianjin, China) and Zhi Zhuang (Tianjin, China).
The patent was filed on March 30, 2022, under Application No. D/832,799.
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