ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,504,262, issued on Dec. 23, was assigned to LUMAS Polymers LLC (Chaska, Minn.).
"Lead-free ammunition projectile" was invented by Zachary Peterson (New Hope, Minn.) and Thomas Fry (Victoria, Minn.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A bullet (ammunition projectile) comprising a branched condensation polymer and a filler, wherein the filler is present in an amount from about 10% to 65% by volume of the branched condensation polymer and filler is described. The bullet may be made by heating a mixture comprised of a branched condensation polymer and a filler comprised of a first and second filler having differing densities and differing particle...