ALEXANDRIA, Va., June 17 -- United States Patent no. 12,311,223, issued on May 27, was assigned to Hydrow Inc. (Boston).

"Rowing system and method" was invented by Bruce Smith (Cambridge, Mass.), Chris Paul (Lincoln, Mass.), Christopher Evans (Amherst, N.H.), Gerhard Pawelka (Lexington, Mass.), William Burke (San Francisco), Harald Quintus-Bosz (Sudbury, Mass.) and Klaus Renner (Hollis, N.H.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Among other things, a rowing technology includes a first rowing machine having an electromagnetic brake providing a resistance to a rower of the machine in each rowing stroke of a series of rowing strokes of the rower An electronic controller causes the resistance of the ele...