ALEXANDRIA, Va., July 3 -- United States Patent no. 12,345,139, issued on July 1, was assigned to Baker Hughes Oilfield Operations LLC (Houston).

"One way clutch train for arresting backspin" was invented by Chengbao Wang (Oklahoma City), Zheng Ye (Claremore, Okla.), David Tanner (Broken Arrow, Okla.) and Randal Perisho (Tulsa, Okla.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An ESP system having a driveshaft assembly; an electrical motor coupled with an end of the driveshaft assembly, and that when energized rotates the driveshaft assembly in a first direction. The ESP system also includes a pump coupled with an end of the driveshaft assembly distal from the motor, and a one-way clutch train in the driv...