ALEXANDRIA, Va., July 15 -- United States Patent no. 12,663,557, issued on June 23, was assigned to ANHUI HUIZHOU GEOLOGY SECURITY INSTITUTE Co. LTD (Hefei, China).

"Three-dimensional unwrapping processing method and system for borehole transient electromagnetic method" was invented by Huizhou Liu (Hefei, China), Haoguo Chen (Hefei, China), Ya Dong (Hefei, China), Yubing Yang (Hefei, China), Le Yang (Hefei, China), Lingjun Wang (Hefei, China) and Weihao Sun (Hefei, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A three-dimensional unwrapping processing method for a borehole transient electromagnetic method includes: acquiring measurement information of each measuring point in a target borehole, where t...