ALEXANDRIA, Va., Sept. 3 -- United States Patent no. 12,404,750, issued on Sept. 2, was assigned to SCHLUMBERGER TECHNOLOGY Corp. (Sugar Land, Texas).

"Systems and methods for downhole power generation" was invented by Nicholas H. Smith (Katy, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A downhole power generation system includes a generator that generates AC input power having a variable input voltage that varies based on a rotational rate of a turbine, which in turn is based on a variable flow rate of a fluid flow. An active rectifier converts the AC power having the variable input voltage to DC power having a constant output voltage. This may increase the range of usable input voltages and decrea...