ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,395,037, issued on Aug. 19, was assigned to BorgWarner Inc. (Auburn Hills, Mich.).

"Hydrogen recirculation blower" was invented by Andre Becker (Bann, Germany), Thomas Glass (Rockenhausen, Germany) and Kai Homann (Mainz, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A hydrogen recirculation blower is used in a hydrogen return arrangement in a fuel cell system. The blower includes a rotatable rotor with an end region on which an impeller is arranged, and a stator with coil windings and with a hydrogen barrier which is formed as a hollow body. The rotor is arranged in a cavity of the hydrogen barrier, with the hydrogen barrier running both betwee...