ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,525,829, issued on Jan. 13, was assigned to Rolls-Royce Corp. (Indianapolis) and Rolls-Royce North American Technologies Inc. (Indianapolis).

"Composite stator sleeve for electric machine" was invented by Benedict N. Hodgson (Indianapolis), Robert W. Heeter (Indianapolis), Alan W. Smith (Indianapolis) and Hossein Baninajar (Indianapolis).

According to the abstract* released by the U.S. Patent & Trademark Office: "A stator housing assembly includes a stator housing and a stator sleeve. The stator sleeve including a combination of composite layers with different high strength fibers. The stator housing includes a first end section and a second end section that define a stator cavity co...