ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,460,653, issued on Nov. 4, was assigned to Robert Bosch GmbH (Stuttgart, Germany).
"Method for operating a multi-stage air compression system, multi-stage air compression system, and fuel cell system" was invented by Helerson Kemmer (Vaihingen, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a method for operating a multi-stage air compression system (1) comprising an electrically driven first compressor (1.1) and a second compressor (1.2) driven by a turbine (2), wherein the compressors (1.1, 1.2) are arranged in a supply air path (3) and the turbine (2) is arranged in an exhaust air path (4) of an air system for supplyin...