ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,480,996, issued on Nov. 25, was assigned to GARRETT TRANSPORTATION I INC. (Torrance, Calif.).

"System and method for e-machine stator insulation resistance monitoring" was invented by Poomkuzhimannil John (Bangalore, India), Abhijith Vikraman Pillai Santhamma (Prague) and Kishor Kumar K (Bangalore, India).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method and system for monitoring an insulation resistance (IR) of an e-machine includes a bridge circuit arrangement. A voltage across the bridge circuit arrangement is detected. The IR is calculated as a resistance in the bridge circuit arrangement associated with the detected voltage."

The patent was f...