ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,724,074, issued on Sept. 1, was assigned to Halliburton Energy Services Inc. (Houston).

"Electromotive force (EMF) monitoring for an electrical submersible pump (ESP) with permanent magnet motor (PMM)" was invented by Hassan Mansir (Frimley, Great Britain), John Badawi (Frimley, Great Britain), Richard Joseph Delaloye (Houston) and Tom Yohanan (Tulsa, Okla.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Systems, methods, and apparatus, including computer programs encoded on computer-readable media, for monitoring an electromotive force (EMF) for an electrical submersible pump (ESP) having a permanent magnet motor (PMM) are disclosed. One or more voltage...