ALEXANDRIA, Va., March 12 -- United States Patent no. D1,066,725, issued on March 11, was assigned to HANGZHOU BIOTEST BIOTECH Co. LTD. (Hangzhou, China).
"Saliva test device" was invented by Shujiang Wu (Zhejiang, China) and Liang Hong (Zhejiang, China).
The patent was filed on Nov. 8, 2022, under Application No. D/859,171.
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