ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,451,507, issued on Oct. 21, was assigned to AUDI AG (Ingolstadt, Germany).
"Fuel cell stack, fuel cell device and motor vehicle with fuel cell device" was invented by Oliver Keitsch (Heilbronn, Germany), Armin Siebel (Neckarsulm, Germany) and Sebastian Voigt (Heilbronn, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A fuel cell stack includes a plurality of fuel cells arranged in the direction of the stack and tensioned by means of tension elements, of which at least one has a cell voltage tap for electrical connection to a cell monitoring unit, wherein the at least one cell voltage tap is mechanically secured by at least one of the tension elem...