ALEXANDRIA, Va., June 12 -- United States Patent no. 12,297,844, issued on May 13, was assigned to BorgWarner Inc. (Auburn Hills, Mich.).

"Controlled area progression diffuser" was invented by Robert Dirk Lotz (Asheville, N.C.) and Robert Malcom Wallace (Chandler, N.C.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A controlled area progression diffuser for a compressor may be defined by a bearing diffuser face of a bearing housing and a compressor diffuser face of a compressor housing that are spaced apart by a diffuser width, and airflow from a compressor wheel enters the controlled area progression diffuser through a diffuser inlet, flows between the diffuser faces, and flows out of a diffuser outlet to a...