ALEXANDRIA, Va., July 9 -- United States Patent no. 12,355,502, issued on July 8, was assigned to Rohde & Schwarz GmbH & Co. KG (Munich).

"Measurement application device calibration unit, measurement system, method" was invented by Florian Ramian (Karlsfeld, Germany) and Alexander Roth (Dorfen, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A measurement application device calibration unit, system, and method includes at least one coupling element comprising a first and second connections for coupling the coupling element into a signal measurement path that is coupled to a measurement application device, and a third connection, wherein the coupling element is configured to at least one of couple out ...