ALEXANDRIA, Va., June 12 -- United States Patent no. 12,297,902, issued on May 13, was assigned to Schaeffler Technologies AG & Co. KG (Herzogenaurach, Germany).

"Planetary gearbox" was invented by Joseph Johnson (Mooresville, N.C.) and Nicholas Hrusch (Wooster, Ohio).

According to the abstract* released by the U.S. Patent & Trademark Office: "A planetary gearbox includes a gearbox housing, a sun gear arranged for receiving an input torque, a ring gear rotationally fixed in the gearbox housing, and a planetary assembly arranged to transmit an output torque. The planetary assembly includes a planetary carrier, sealed to the gearbox housing, a plurality of planetary shafts, a plurality of planetary gears, each arranged on one of the plurali...