ALEXANDRIA, Va., March 3 -- United States Patent no. 12,566,200, issued on March 3, was assigned to HITACHI ENERGY LTD (Zurich, Switzerland).

"Device, system, and method for performing an online-update of a two-port equivalent" was invented by Vedanta Pradhan (Bhubaneswar, India) and Od Naidu (Bangalore, India).

According to the abstract* released by the U.S. Patent & Trademark Office: "A device or system for use with an electric power system is provided. The electric power system has a first bus, a second bus, a third bus, a first line between the first and second buses, and a second line between the third bus and one of the first and second buses. The device or system is operative to determine, responsive to at least one trip event, one...