ALEXANDRIA, Va., June 10 -- United States Patent no. 12,292,433, issued on May 6, was assigned to Qingdao University of Technology (Qingdao, China).

"ERT/ECT dual-modality combined three-dimensional sensor" was invented by Peng Zhang (Qingdao, China), Wentao Wang (Qingdao, China), Jiuwen Bao (Qingdao, China) and Shanbin Xue (Qingdao, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to an ERT/ECT dual-modality combined three-dimensional sensor. A cover box is sheathed with a shielding box, a plurality of small round holes are formed in the top surface and the side surfaces of the cover box, ERT electrodes are arranged in the small round holes, and ECT electrodes are arranged...