ALEXANDRIA, Va., March 19 -- United States Patent no. 12,255,499, issued on March 18, was assigned to Nanjing Chervon Industry Co. Ltd. (Nanjing, China).

"Power tool and electronic control device" was invented by Huaishu Wang (Nanjing, China), Baoshan Li (Nanjing, China), Junya Duan (Nanjing, China), Jifeng Feng (Nanjing, China), Yanfeng Fan (Nanjing, China), Yuemei Min (Nanjing, China), Peng Teng (Nanjing, China) and Qingsong Yang (Nanjing, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A power tool includes a main body and a battery pack. The main body includes a housing and a motor, a switch assembly, and an electronic control device. The electronic control device is electrically connected to the sw...