ALEXANDRIA, Va., Sept. 3 -- United States Patent no. 12,404,648, issued on Sept. 2, was assigned to Kundel Industries Inc. (Vienna, Ohio).

"Trench box including modular panels and method of use thereof" was invented by Robert Kundel Sr. (Cortland, Ohio).

According to the abstract* released by the U.S. Patent & Trademark Office: "A trench box including a first plate to support a first side of a trench, a second plate to support a second side of a trench, and spreader bars extending between the first and second plates. One or both of the first and second plates is assembled from a plurality of modular panels arranged in a same plane and detachably secured to one another by a plurality of connectors and fasteners. A panel may be removed from...