ALEXANDRIA, Va., June 25 -- United States Patent no. 12,339,269, issued on June 24, was assigned to SOUTH CHINA INSTITUTE OF ENVIRONMENTAL SCIENCE, MEE (ECOLOGICAL AND ENVIRONMENTAL EMERGENCY RESEARCH INSTITUTE, MEE) (Guangzhou, China).

"Device for stratified in-situ monitoring of water quality and dissolved oxygen of sediments in tidal river network region" was invented by Weijie Li (Guangzhou, China), Huaiyang Fang (Guangzhou, China), Runmian Yang (Guangzhou, China), Hongwei Du (Guangzhou, China), Jiale Chen (Guangzhou, China) and Fantang Zeng (Guangzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A device for stratified in-situ monitoring of the water quality and dissolved oxygen of sediments in...