ALEXANDRIA, Va., April 21 -- United States Patent no. 12,609,565, issued on April 21, was assigned to Rivian IP Holdings LLC (Irvine, Calif.).

"Systems and methods for asymmetrical delta shape interior permanent magnet machine" was invented by Hao Ding (Irvine, Calif.), Khwaja Rahman (Troy, Mich.) and Fan Wu (Rancho Palos Verdes, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and methods for an asymmetrical delta shape interior permanent magnet machine include rotor having a plurality of magnets arranged on an interior of the rotor. The plurality of magnets can include a first magnet having a first size, a second magnet having a second size, and a third magnet having a third size. The first ma...