ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,756,210, issued on Oct. 6, was assigned to Nanjing Chervon Industry Co. Ltd. (Nanjing, China).

"Charging device and charging system" was invented by Dong Yang (Nanjing, China), Henghui Song (Nanjing, China) and Cunrong Huang (Nanjing, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A charging device includes: a power interface configured to access a power supply; and a charging interface configured to be detachably connected to a battery pack. The charging interface includes: a charging terminal configured to be connected to a charging terminal of the battery pack; a communication terminal configured to be connected to a communication terminal of th...