ALEXANDRIA, Va., June 16 -- United States Patent no. 12,306,524, issued on May 20, was assigned to SEESCAN INC. (San Diego).

"Multi-dielectric coaxial push-cables and associated apparatus" was invented by Alexander L. Warren (Escondido, Calif.) and Mark S. Olsson (La Jolla, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Coaxial video push-cables are disclosed. One embodiment includes a central conductor and a multi-dielectric stack of multiple concentric tubular layers disposed around the central conductor having one or more structural layers and one or more impedance tuning layers where the thickness of materials of each layer are selected to provide a pre-defined elastic modulus and electromagnetic ...