ALEXANDRIA, Va., March 31 -- United States Patent no. 12,589,799, issued on March 31, was assigned to Hyundai Motor Co.; (Seoul, South Korea) and Kia Corp. (Seoul, South Korea).

"Speed reducer and independent steering system including the same" was invented by Jeong Hwan Park (Seoul, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A speed reducer includes an input shaft configured to receive power from a drive portion, a gear unit fastened to the input shaft to receive the power from the drive portion through the input shaft, and an output shaft coupled to the gear unit and configured to transmit driving power, in which the gear unit includes a spur gear coupled to the input shaft, and a mounting ...