ALEXANDRIA, Va., July 3 -- United States Patent no. 12,347,900, issued on July 1, was assigned to HYUNDAI MOTOR COMPANY (Seoul, South Korea) and KIA Corp. (Seoul, South Korea).

"Cold start control method and system for fuel cell vehicles" was invented by Young Man Lee (Gwangju-si, South Korea) and Jong Gyun Kim (Yongin-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A cold start control method and system for fuel cell vehicles determines when the fuel cell vehicle is started, whether the fuel cell vehicle enters a cold start mode. An estimated time estimated to be required until the stopped vehicle coolant temperature, which is measured in a state in which the fuel cell vehicle is stopped befo...