ALEXANDRIA, Va., March 26 -- United States Patent no. 12,259,222, issued on March 25, was assigned to KENNAMETAL INC. (Latrobe, Pa.).
"Armor plate, armor plate composite, and armor" was invented by Werner Parlow (Mannweiler-Colln, Germany), Manfred Wolf (Eckersdorf, Germany) and Thomas Theuerkauf (Bayreuth, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "Armor plate having a thickness of at least 3 mm and an edge length of at least 20 mm, wherein the armor plate consists of a material made largely of a component selected from the group hard metal, cermet and/or combinations thereof. An armor plate composite comprising at least two layers of armor plates and an armor are provided as well."
The patent ...