ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,732,117, issued on Sept. 8, was assigned to GM Global Technology Operations LLC (Detroit).

"X-type multilevel converter systems including interleaved topologies for mutual inductance cancellation" was invented by Benjamin S. Ngu (Rochester Hills, Mich.), Yilun Luo (Ann Arbor, Mich.), Khorshed Mohammed Alam (Canton, Mich.), Chandra S. Namuduri (Troy, Mich.), Rashmi Prasad (Troy, Mich.) and Michael Z. Pieszala (Panama City, Fla.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A multi-phase power inverter including a plurality of X-type multilevel power converters arranged to transfer electric power between a high-voltage direct current (DC) power supply an...