ALEXANDRIA, Va., July 15 -- United States Patent no. 12,665,407, issued on June 23, was assigned to Chengli Li (Suzhou, China).
"Leakage current detection and interruption device for power cord and related electrical connectors and electrical appliances" was invented by Chengli Li (Suzhou, China) and Long Chen (Suzhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A leakage current detection and interruption device includes a switch for controlling an electrical connection between input and output ends of power supply lines; a leakage current detection module for generating a leakage fault signal when detecting a leakage current on the power supply lines; a drive module coupled to the leakage current ...