ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,523,345, issued on Jan. 13, was assigned to Robert Bosch GmbH (Stuttgart, Germany).

"Shut-off valve, and hydrogen tank system comprising a shut-off valve" was invented by Andreas Rau (Stuttgart, Germany), Udo Schaich (Stuttgart, Germany) and Joachim Soubari (Ettlingen, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a shut-off valve (1) for hydrogen tank systems. comprising a main valve (2) having a main valve piston (3) which can be liftably moved, delimits a control chamber (6) at one end, interacts with a main valve seat (4) at the other end and is acted upon by the spring force of a spring (5) in the direction of the ...