ALEXANDRIA, Va., March 5 -- United States Patent no. 12,240,349, issued on March 4, was assigned to Cummins Inc. (Columbus, Ind.).

"Systems and methods for estimating state of health of an energy storage device" was invented by Ruigang Zhang (Bagersville, Ind.), Guodong Fan (Columbus, Ind.) and Richard A. Booth (Columbus, Ind.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system for determining a state of health (SOH) of an energy storage device comprises a controller configured to be coupled to the energy storage device. The controller is configured to determine a current value drawn by or supplied to the energy storage device over a predefined period of time. In response to the current value not satisfy...