ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,749,691, issued on Sept. 29, was assigned to POWERCELL SWEDEN AB (Gothenburg, Sweden).

"Fuel cell assembly" was invented by Mattias Holmberg (Gothenburg, Sweden).

According to the abstract* released by the U.S. Patent & Trademark Office: "A fuel cell assembly includes first and second flow field plates sandwiching a multilayer membrane electrode assembly having first and second electrodes and a membrane. Each flow field plate has a flow field structure protruding from a base level for distributing reactant. A sealing element between the plates prevents leakage of reactants. In a boundary area between the flow field structure and the sealing element, the first flow field plate has a ...