ALEXANDRIA, Va., June 12 -- United States Patent no. 12,297,966, issued on May 13, was assigned to CHENGDU QINCHUAN IOT TECHNOLOGY Co. LTD. (Chengdu, China).

"Methods and systems for safe maintenance of underground pipeline corridor based on smart gas regulatory internet of things" was invented by Zehua Shao (Chengdu, China), Bin Liu (Chengdu, China), Yuefei Wu (Chengdu, China) and Yongzeng Liang (Chengdu, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method and system for safe maintenance of an underground pipeline corridor based on a smart gas regulatory IoT. The method is executed by a gas company management platform of a system for safe maintenance of the underground pipeline corridor based on t...