ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,502,791, issued on Dec. 23, was assigned to HL MANDO Corp. (Pyeongtaek-si, South Korea).

"Automatic battery replacement system and method for transfer robot" was invented by Oseok Kwon (Pyeongtaek-si, South Korea), Jeongjae Park (Pyeongtaek-si, South Korea), Dongseon Kim (Pyeongtaek-si, South Korea), Seongho Choi (Pyeongtaek-si, South Korea) and Joonkyu Song (Pyeongtaek-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are an automatic battery replacement system of a transfer robot which includes a transfer robot which autonomously moves and includes a lifting module which supports and lifts a cargo, a battery which is detachably ...