ALEXANDRIA, Va., March 19 -- United States Patent no. 12,255,361, issued on March 18, was assigned to Robert Bosch GmbH (Stuttgart, Germany).
"Fuel cell unit" was invented by Andreas Ringk (Bamberg, Germany) and Anton Ringel (Bamberg, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "Fuel cell unit in the form of a fuel cell stack for producing electrical energy in an electrochemical manner, comprising fuel cells, the fuel cells each comprising a proton exchange membrane, an anode, a cathode, a gas diffusion layer, a bipolar plate, at least one fluid channel for the passage of a fluid, at least one seal (11) composed of a sealing material (42) for sealing off the at least one fluid channel (37), wherein...