ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,420,521, issued on Sept. 23, was assigned to TI Automotive (Fuldabruck) GmbH (Fuldabruck, Germany).
"Hydrogen tube" was invented by Andre Hackel (Waldeck, Germany), Frank Fahrenholz (Kassel, Germany), Martin Schramowski (Kassel, Germany) and Siegfried Arnold (Kassel, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A tube and use of a tube for guiding hydrogen, preferably in a vehicle. The tube encloses a lumen and comprises several layers, wherein the layers of the tube includes at least two barrier layers. An inner barrier layer comprises a first plastic, and an outer barrier layer comprises a second plastic. The barrier layers are separated fr...