ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,473,806, issued on Nov. 18, was assigned to INSTITUTE OF GEOLOGY AND GEOPHYSICS, CHINESE ACADEMY OF SCIENCES (Beijing).

"Low-to-medium maturity shale oil extraction system based on curtailed power heating" was invented by Xiukuo Sun (Beijing), Zhaobin Zhang (Beijing), Xiao Li (Beijing), Shouding Li (Beijing), Jianming He (Beijing), Guanfang Li (Beijing), Bo Zheng (Beijing), Tianqiao Mao (Beijing), Yanzhi Hu (Beijing) and Tao Xu (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "A low-to-medium maturity shale oil extraction system based on curtailed power heating includes a transmission line with an input terminal electrically connected to curtailed...