ALEXANDRIA, Va., Sept. 24 -- United States Patent no. 12,742,232, issued on Sept. 22, was assigned to Tenaris Coiled Tubes LLC (Houston).
"Method of forming and heat treating coiled tubing" was invented by Martin Valdez (Buenos Aires, Argentina), Bruce A. Reichert (Houston) and Jorge Mitre (Houston).
According to the abstract* released by the U.S. Patent & Trademark Office: "Described herein are coiled tubes with improved and varying properties along the length that are produced by using a continuous and dynamic heat treatment process (CDHT). Coiled tubes can be uncoiled from a spool, subjected to a CDHT process, and coiled onto a spool. A CDHT process can produce a "composite" tube such that properties of the tube along the length of the...