ALEXANDRIA, Va., March 26 -- United States Patent no. 12,258,970, issued on March 25, was assigned to Grundfos Holding A/S (Bjerringbro, Denmark).

"Centrifugal pump" was invented by Christoffer Nedergaard (Bjerringbro, Denmark), Kurt Laursen (Bjerringbro, Denmark), Martin Lindemann (Bjerringbro, Denmark) and Henrik Duch Simonsen (Bjerringbro, Denmark).

According to the abstract* released by the U.S. Patent & Trademark Office: "The centrifugal pump includes a flow measuring device (3) adapted to measure a delivery flow through the pump by means of a turbine wheel (32) including at least one permanent magnet (42). The flow measuring device includes at least one magnetic flux sensor (50, 51) arranged in a sensor housing (48) mounted in an ou...