ALEXANDRIA, Va., June 17 -- United States Patent no. 12,312,928, issued on May 27, was assigned to Halliburton Energy Services Inc. (Houston).

"Wellbore services system with anytime access for pump maintenance" was invented by Brad Robert Bull (Duncan, Okla.), Gero Testa (Duncan, Okla.) and Shaun Kyle Pyka (Houston).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed embodiments include systems and methods for providing maintenance to a pump of a pumping unit in situ within a red zone of a pressurized wellbore services system. Ballistic barriers may be disposed between the pumping unit and the pressurized wellbore services manifold, and the pump may be remotely isolated from fluid communication with the ...