US Patent Issued to CCTEG ChongQing Research Institute on Oct. 21 for "Coal mine intelligent directional drill and drilling method therefor" (Chinese Inventors)

ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,448,847, issued on Oct. 21, was assigned to CCTEG ChongQing Research Institute Co. Ltd. (Chongqing, China).

"Coal mine intelligent directional drill and drilling method therefor" was invented by Qingfeng Wang (ChongQing, China), Dezhong Xin (ChongQing, China), Jun Wan (ChongQing, China), Hang Chen (ChongQing, China), Xiaohua Liu (ChongQing, China), Yuqing Xiao (ChongQing, China), Daihui Ma (ChongQing, China), Shizhai Zhang (ChongQing, China), Lin Yang (ChongQing, China), Zhengang Ma (ChongQing, China), Xin Dou (ChongQing, China), Min Tang (ChongQing, China), Jian Pu (ChongQing, China), Keyu Chen (ChongQing, China), Jinjun Lv (ChongQing, China), Yuan Wan (ChongQing, China), Xing Wang (...