ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,431,523, issued on Sept. 30, was assigned to Hyundai Motor Co. (Seoul, South Korea) and Kia Corp. (Seoul, South Korea).

"Fuel cell" was invented by Dae Han Ka (Yongin-si, South Korea) and Yong Suk Heo (Seoul, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A fuel cell of the disclosure includes a cell stack including a plurality of unit cells stacked in a first direction, an end plate disposed on at least one of the two ends of the cell stack, a heating element disposed between the end plate and the cell stack, and a heater connector embedded in the end plate and electrically connected to the heating element. The end plate includes a core ha...