ALEXANDRIA, Va., March 26 -- United States Patent no. 12,259,021, issued on March 25, was assigned to HYUNDAI MOTOR COMPANY (Seoul, South Korea) and KIA Corp. (Seoul, South Korea).
"Universal driving device" was invented by Woo Hyun Lim (Incheon, South Korea), Ki Seok Kim (Seongnam-si, South Korea), Kyoung Chul Min (Hwaseong-si, South Korea), Jong Sool Park (Hwaseong-si, South Korea), Dae In Lee (Anyang-si, South Korea) and Yeo Hae Lee (Gunpo-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A universal driving device includes a ring gear, a sun gear having a variable inter-axis distance with respect to a rotation shaft of the ring gear, a gear train including a series of gears configured to con...