ALEXANDRIA, Va., Sept. 3 -- United States Patent no. 12,404,734, issued on Sept. 2, was assigned to Innovex International Inc. (Houston).

"Lock ring actuator for tubing hanger installation" was invented by Andrew B. Mitchell (Houston), Chris D. Bartlett (Houston), David Scantlebury (Houston), Rick Murphy (Houston), Fife B. Ellis (Houston) and Gregory Norwood (Houston).

According to the abstract* released by the U.S. Patent & Trademark Office: "A hanger assembly includes: a main body; a lock ring coupled to the main body and configured to expand radially outward into a profile on an inner diameter of the wellhead; and an actuator, wherein the actuator is capable of transferring an axial force from the actuator into outward radial expansion...