ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,738,765, issued on Sept. 15.

"Method and system for optimization to non-contact micro intelligent sensing in secondary DC loop potential" was invented by Yuanhang Yang (Kunming City, China), Benyu Li (Kunming City, China), Dezhi Kong (Kunming City, China), Qiaowei Yang (Kunming City, China), Jing Chen (Kunming City, China), Jiong Chen (Kunming City, China), Hengchu Shi (Kunming City, China), Hao You (Kunming City, China), Lidan Peng (Kunming City, China), Shuying Pang (Kunming City, China), Yigong Xie (Kunming City, China), Ming Zhao (Kunming City, China), Gang Chen (Kunming City, China), Yunkun Deng (Kunming City, China), Zaihe Yang (Kunming City, China) and Zongguan Shao (Kunming C...