ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,449,239, issued on Oct. 21.
"Ballistic block and ballistic wall made of ballistic blocks" was invented by Krzysztof Kasendra (Cracow, Poland), Tomasz Kasendra (Cracow, Poland), Jerzy Kusmierczyk (Bielsko Biala, Poland) and Jacek Pietrzak (Lubliniec, Poland).
According to the abstract* released by the U.S. Patent & Trademark Office: "A ballistic block in the shape of a prism, comprising a front wall (1), a back wall (2), side walls (3, 4) and a through space (5) intended to be filled with ballistic pellets. The object of the invention is also a ballistic wall (12) made of ballistic blocks (13)."
The patent was filed on July 15, 2020, under Application No. 17/627,655.
*For further in...