US Patent Issued to CCTEG TAIYUAN RESEARCH INSTITUTE, SHANXI TIANDI COAL MINING MACHINERY on March 3 for "Tunnel tunneling system" (Chinese Inventors)

ALEXANDRIA, Va., March 3 -- United States Patent no. 12,565,837, issued on March 3, was assigned to CCTEG TAIYUAN RESEARCH INSTITUTE (Taiyuan, China) and SHANXI TIANDI COAL MINING MACHINERY Co. LTD. (Taiyuan, China).

"Tunnel tunneling system" was invented by Hong Wang (Taiyuan, China), Bukang Wang (Taiyuan, China), Xiaofeng Zhang (Taiyuan, China), Kai Ma (Taiyuan, China), Yongcheng Ding (Taiyuan, China), Faquan Li (Taiyuan, China), Jianwei Jia (Taiyuan, China), Qiang Ma (Taiyuan, China), Mingjiang Song (Taiyuan, China), Yanhua Qiao (Taiyuan, China), Ningning Wang (Taiyuan, China), Gehui Xie (Taiyuan, China), Feng Liu (Taiyuan, China), Xiaoli Ren (Taiyuan, China), Sen Xu (Taiyuan, China), Qiang Zhang (Taiyuan, China), Dong Song (Taiyuan, Ch...