ALEXANDRIA, Va., June 10 -- United States Patent no. 12,291,939, issued on May 6, was assigned to Innovex International Inc. (Houston).
"Electrical actuation of a valve in a wellhead assembly" was invented by David G. Holliday (Spring, Texas), John Mossop (Houston), David Scantlebury (Richmond, Texas), Matthew Crotwell (Houston), Daniel J. McLaughlin (Katy, Texas), Christopher D. Bartlett (Spring, Texas) and Gregory K. Norwood (Boerne, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "A system includes a tubing hanger configured to be positioned in a wellhead assembly, the tubing hanger configured to support a tubing string, the tubing hanger including: a bore extending at least partially through the tubi...