ALEXANDRIA, Va., June 5 -- United States Patent no. 12,277,847, issued on April 15, was assigned to CHENGDU QINCHUAN IOT TECHNOLOGY Co. LTD. (Chengdu, China).

"Determination and alarm methods and internet of things (IOT) systems for gas leakage of smart gas" was invented by Zehua Shao (Chengdu, China), Yaqiang Quan (Chengdu, China), Yuefei Wu (Chengdu, China) and Bin Liu (Chengdu, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a determination and alarm method and a determination and alarm Internet of Things (IoT) system for a gas leakage of smart gas. The determination and alarm method comprises obtaining gas monitoring data based on a data acquisition instruction, and determining whether ...