ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,736,705, issued on Sept. 15, was assigned to United States Department of Energy (Washington).
"Distributed electromagnetic interrogation system" was invented by Paul R. Ohodnicki (Allison Park, Pa.), Jagannath Devkota (Pittsburgh), Roman Shugayev (Albuquerque, N.M.) and Ruishu Wright (Pittsburgh).
According to the abstract* released by the U.S. Patent & Trademark Office: "A distributed electromagnetic interrogation system may include a wellbore, a wellbore casing positioned in the wellbore, and a plurality of conformal helical antennas distributed along the wellbore casing. The plurality of conformal helical antennas may be configured to operate in a radio or microwave frequency ran...