ALEXANDRIA, Va., Sept. 30 -- United States Patent no. D1,095,880, issued on Sept. 30, was assigned to HANGZHOU BIOTEST BIOTECH Co. LTD. (Hangzhou, China).
"Saliva test device" was invented by Dongfeng Jiang (Hangzhou, China) and Liang Hong (Hangzhou, China).
The patent was filed on July 19, 2023, under Application No. D/880,223.
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