ALEXANDRIA, Va., June 17 -- United States Patent no. 12,311,428, issued on May 27, was assigned to TOX PRESSOTECHNIK GMBH & Co. KG (Weingarten, Germany).

"Joining tool unit" was invented by Michael Badent (Weingarten, Germany), Wolfgang Pfeiffer (Hagnau, Germany) and Marcus Matzke (Ravensburg, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A joining tool unit having a movable tool, a tool counter element, a drive unit, a light-guiding system, a light source, and a monitoring unit. The movable tool and the tool counter element are arranged opposite each other on the joining tool unit, and the light-guiding system is designed to conduct light of the light source in the direction of a joint location of ...