ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,420,769, issued on Sept. 23, was assigned to ZF CV Systems Global GmbH (Bern, Switzerland).

"Method for testing a select-high valve" was invented by Julian van Thiel (Grossburgwedel, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "The disclosure relates to a method for testing a shuttle valve in a pneumatic system, wherein the shuttle valve has a first shuttle valve port, a second shuttle valve port and a third shuttle valve port, wherein the higher of the pressures prevailing at the first shuttle valve port and second shuttle valve port is modulated at the third shuttle valve port in each case, wherein the method includes the steps: a) modulati...