ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,444,950, issued on Oct. 14, was assigned to ALTENERGY POWER SYSTEM INC. (Zhejiang, China).

"Control method and apparatus for shut-off device and shut-off device" was invented by Yuhao Luo (Zhejiang, China), Dongming Zhou (Zhejiang, China), Fei Shen (Zhejiang, China), Xuan Zhu (Zhejiang, China), Xiao Lu (Zhejiang, China), Guowei Miao (Zhejiang, China) and Wenwei Li (Zhejiang, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method and an apparatus for controlling a shutoff device, and a shutoff device. The method is applied to a processor of the shutoff device. The method includes: determining whether a heartbeat signal is received continuously dur...