ALEXANDRIA, Va., March 17 -- United States Patent no. 12,577,949, issued on March 17, was assigned to SCHWABISCHE HUTTENWERKE AUTOMOTIVE GMBH (Aalen, Germany).

"Vane pump featuring fluid lubrication for an impeller" was invented by Claus Welte (Aulendorf, Germany), Lothar Preisler (Bad Schussenried, Germany) and Michael Schwarz (Mittelbiberach, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A vane pump includes: a housing with a first end-facing wall and a second end-facing wall which delineate a delivery chamber on one end-facing side each, and with a circumferential wall which extends around the delivery chamber; a rotor which can be rotated about a rotational axis in the delivery chamber and which...