US Patent Issued to U.S. WELL SERVICES on Dec. 9 for "Encoderless vector control for VFD in hydraulic fracturing applications" (Texas Inventors)

ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,494,695, issued on Dec. 9, was assigned to U.S. WELL SERVICES LLC (Willow Park, Texas).

"Encoderless vector control for VFD in hydraulic fracturing applications" was invented by Lon Robinson (Houston), Jared Oehring (Houston) and Brandon N. Hinderliter (Houston).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system and a method for use of electric motors in fracturing operations are disclosed. The system includes an electric motor, a turbine generator, an encoderless vector control subsystem, and at least one pump. The turbine generator is adapted to generate electric power for the system. The encoderless vector control subsystem is coupled between the ...