ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,562,574, issued on Feb. 24, was assigned to Viessmann Climate Solutions SE (Allendorf, Germany).

"Method for operating a power grid, power grid, control unit and computer program for operating the power grid" was invented by Viktor Kisner (Berlin), Max Pritzkoleit (Berlin) and Maciej Zielonka (Gdansk, Poland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method operates a power grid, which has a DC voltage circuit and an AC voltage circuit, which are electrically connected by a converter. The AC voltage circuit has a supply connection for connecting to a supply network, and an energy store and a generator are connected to the DC voltage circuit. A pre...