ALEXANDRIA, Va., May 5 -- United States Patent no. 12,618,739, issued on May 5, was assigned to INFICON GMBH (Cologne, Germany).

"Test leakage device" was invented by Daniel Wetzig (Cologne, Germany), Maximilian Reismann (Cologne, Germany), Josef Grenz (Cologne, Germany) and Hendrik Van Triest (Cologne, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "In a test leakage device (10) for testing the functionality and for calibrating a gas leak detection device having an evacuable test chamber (34) for receiving a test object and the test leakage device (10), wherein the test leakage device (10) has a base (12), a cover (16) and at least one side wall (14) connecting the base (12) to the cover (16), which ...