ALEXANDRIA, Va., March 26 -- United States Patent no. 12,257,925, issued on March 25, was assigned to Hyundai Motor Co. (Seoul, South Korea), Foundation for Research and Business, Seoul National University of Science and Technology (Seoul, South Korea) and Kia Corp. (Seoul, South Korea).

"Converter and power conversion system for vehicle auxiliary battery" was invented by In Yong Yeo (Bucheon-si, South Korea), Youn Sik Lee (Suwon-si, South Korea) and Se Wan Choi (Seoul, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A power conversion system includes: a main battery configured to be recharged with power and to supply the recharged power to a motor, thereby supplying rotation force to a wheel of a...