ALEXANDRIA, Va., May 5 -- United States Patent no. 12,618,751, issued on May 5, was assigned to Institute of Geology and Geophysics, Chinese Academy of Sciences (Beijing).
"Rock sample extraction device" was invented by Hang Bian (Beijing), Zhaobin Zhang (Beijing), Shouding Li (Beijing), Xiao Li (Beijing), Jianming He (Beijing), Bo Zheng (Beijing), Tianqiao Mao (Beijing), Guanfang Li (Beijing) and Peng Guo (Beijing).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention discloses a rock sample extraction device, which comprises a downhole plate and a plurality of sampling components uniformly arranged on the downhole plate, wherein the sampling components are used for sampling rock samples in we...