US Patent Issued to Lili Yu on June 30 for "Water test paper and multifunctional detection test kit" (Chinese Inventors)

ALEXANDRIA, Va., July 16 -- United States Patent no. 12,669,442, issued on June 30, was assigned to Lili Yu (Shenzhen City, China).

"Water test paper and multifunctional detection test kit" was invented by Lili Yu (Shenzhen City, China) and Kuizi Wang (Shenzhen City, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A multifunctional detection test kit includes a water test paper including a base and a plurality of test modules provided on different test zones of the base. Each of the test modules is configured to detect one of pH value, total alkalinity, cyanuric acid, total chlorine, bromine, free chlorine water hardness, lead, iron, copper, nitrite, nitrate, MPS, nickel, and phosphate."

The patent was...