ALEXANDRIA, Va., Sept. 23 -- United States Patent no. D1,094,901, issued on Sept. 23, was assigned to OTOS WING Co. LTD. (Seoul, South Korea).
"Dust mask" was invented by Moon Young Huh (Seoul, South Korea) and Sung Won Huh (Seoul, South Korea).
The patent was filed on May 11, 2023, under Application No. D/875,867.
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