ALEXANDRIA, Va., Sept. 9 -- Visteon Global Technologies, Van Buren Township, Mich., has been assigned a patent (8,524,387) developed by Marc Graaf, Krefeld, Germany, Stephan Koster, Langerwehe, Germany, and Florian Wieschollek, Hurth, Germany, for a "battery unit for hybrid or electric vehicles." The abstract of the patent published by the U.S. Patent and Trademark Office states: "A battery unit for hybrid or electric vehicles comprising a cell module including a plurality of storage cells,   more