ALEXANDRIA, Va., March 19 -- United States Patent no. 12,255,359, issued on March 18, was assigned to AUDI AG (Ingolstadt, Germany).
"Fuel cell stack comprising variable bipolar plates" was invented by Adel Jilani (Burnaby, Canada), Sanjiv Kumar (Burnaby, Canada), Radu P. Bradean (Burnaby, Canada) and Sebastian Voigt (Heilbronn, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A fuel cell stack is provided comprising membrane electrode assemblies and bipolar plates for supplying the membrane electrode assemblies with operating media and coolant, wherein a first bipolar plate comprises flow pathways having path depths that are different from path depths of corresponding flow pathways of a second bipolar...