ALEXANDRIA, Va., June 18 -- United States Patent no. 12,326,051, issued on June 10, was assigned to Halliburton Energy Services Inc. (Houston).

"Spring return system" was invented by Nick Strohla (Carrollton, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus to be positioned in a wellbore formed in a subsurface formation. The apparatus comprises a first lug coupled with a rotation component and configured to rotate a first angle from a neutral position about a central axis when a rotational force is applied to the first lug via the rotation component. The apparatus comprises first bias component coupled with the first lug and configured to return the first lug to the neutral position when the...