ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,512,486, issued on Dec. 30, was assigned to ZeroAvia Inc. (Hollister, Calif.).

"Electric power generation system based on pressurized fuel cell power system with air cooling and recirculation and method for electric power generation by the system" was invented by Sergei Shuvenkov (Moscow), Aleksei Ivanenko (Moscow), Sergei Nefedkin (Moscow) and Sergei Panov (Rybinsk, Russia).

According to the abstract* released by the U.S. Patent & Trademark Office: "An air pressure in fuel cells of an electric power generation system comprising a fuel cell stack (PCS) is raised with a pressurized air cooling system with recirculation to values at least two times greater than typical values for an PC...