US Patent Issued to on Sept. 8 for "Vehicle drive device with variable transmission" (South Korean Inventors)

ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,728,718, issued on Sept. 8, was assigned to SL Corp. (Daegu, South Korea).

"Vehicle drive device with variable transmission" was invented by Chun-Nyung Heo (Gyeongsan-si, South Korea), Jae-Seung Hong (Gyeongsan-si, South Korea), Min-Soo Kim (Gyeongsan-si, South Korea), Mi-Rae Do (Gyeongsan-si, South Korea) and Sung-Jin Kim (Gyeongsan-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A vehicle drive device with a variable transmission includes a first driving module that provides a driving force, a second driving module that controls a transmission ratio, and a reduction gear part comprising a first sun gear, a second sun gear, and a planeta...