ALEXANDRIA, Va., July 21 -- United States Patent no. 12,687,543, issued on July 21, was assigned to ZHEJIANG ORIENT GENE BIOTECH Co. LTD. (Huzhou, China).

"Test device for detecting analyte in liquid sample" was invented by Siyu Lei (Huzhou, China) and Jianqiu Fang (Huzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides a test device. The device includes a testing element and a house configured to accommodate the testing element, where the house is formed by folding a paper-made card, and the testing element is located in the housing. The housing is allowed to be in different change states to test or assay an analyte in a sample."

The patent was filed on April 17, 2023, ...