ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,444,939, issued on Oct. 14, was assigned to ZeroAvia Inc. (Hollister, Calif.).

"Systems and methods for integrated fuel cell stack and battery management for transportation use" was invented by Valery Miftakhov (San Carlos, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An integrated fuel cell power delivery system includes a first power source configured to supply power to a propulsion inverter, a second power source configured to supply power to the propulsion inverter, a disconnect operably connected to the second power source, a bypass diode operably connected to the first power source and the second power source, a sensor that detects an out...