ALEXANDRIA, Va., March 17 -- United States Patent no. 12,578,448, issued on March 17, was assigned to PROCEQ SA (Schwerzenbach, Switzerland).
"Method for probing a subsurface structure" was invented by Samuel Lehner (Zurich, Switzerland) and Antonio Caballero (Volketswil, Switzerland).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method and a device for probing a subsurface structure. The method includes sending an electromagnetic wave into the structure, receiving an echo of the electromagnetic wave from the structure and processing the echo for deriving an internal feature of the structure. The sending the electromagnetic wave into the structure includes subsequently sending a plurality of electromagneti...