ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,457,721, issued on Oct. 28, was assigned to BORGWARNER US TECHNOLOGIES LLC (Wilmington, Del.).

"Systems and methods for power module for inverter for electric vehicle" was invented by Kevin M. Gertiser (Carmel, Ind.) and Chris Fruth (Kokomo, Ind.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system includes: an inverter, wherein the inverter includes: a power module including: a flex layer including a gate trace, a first substrate, a second substrate including a source plane and a gate plane separated from the source plane by a full trench, the source plane including a step trench, and the gate plane including an electrical connection through the gat...