ALEXANDRIA, Va., July 14 -- United States Patent no. 12,681,060, issued on July 14, was assigned to CHONGQING UNIVERSITY (Chongqing, China).

"Method for detecting a topological structure of a grounding grid under extremely cold condition" was invented by Ruotong Ming (Chongqing, China), Fan Yang (Chongqing, China), Zhili Li (Chongqing, China), Tian Tan (Chongqing, China), Jihua Ge (Chongqing, China), Hui Jiang (Chongqing, China) and Zikang Yang (Chongqing, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for detecting a topological structure of a grounding grid under extremely cold condition, includes the following steps: in a substation in an extremely cold area, determining a measuring area S ...