ALEXANDRIA, Va., June 12 -- United States Patent no. 12,297,705, issued on May 13, was assigned to Chengdu University of Technology (Chengdu, China).

"Support mechanism of self-adaptive traction robot for complex wellbore and control method thereof" was invented by Xingming Wang (Chengdu, China), Qiaozhu Wang (Chengdu, China), Qingyou Liu (Chengdu, China), Haiyan Zhu (Chengdu, China), Xuelian Dong (Chengdu, China), Yuanyuan Yang (Chengdu, China), Jingran Tang (Chengdu, China) and Luqing Li (Chengdu, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention discloses a support mechanism of a self-adaptive traction robot for a complex wellbore and a control method thereof, and relates to the t...