ALEXANDRIA, Va., Aug. 18 -- United States Patent no. 12,710,048, issued on Aug. 18, was assigned to Sulzer Management AG (Winterthur, Switzerland).

"Centrifugal pump" was invented by Thomas Welschinger (Radolfzell, Germany) and Marc Widmer (Winterthur, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A centrifugal pump includes a housing including a pump inlet and a pump outlet, a rotor arranged in the housing, and including an impeller to convey fluid from the inlet to the outlet and a pump shaft extending from a first end to a second end, the impeller fixedly connected to the pump shaft, a balance disk fixedly connected to the first end of the pump shaft and cooperating with a stationary counter ...