ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,388,281, issued on Aug. 12, was assigned to SHARKGULF TECHNOLOGY (SHANGHAI) Co. LTD. (Shanghai).
"Charging base and charging system" was invented by Jun Zhang (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "A charging base, including a charging circuit, a power supply circuit and a control unit; where the control unit is electrically connected to the charging circuit and the power supply circuit; when a charging voltage or a charging current of the charging circuit exceeds a preset threshold, the control unit controls a connecting line on the charging base to connect to a ground to form a short circuit and be disconnected from an external charg...