ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,442,626, issued on Oct. 14, was assigned to Innovative Performance Applications LLC (Orange, Calif.).
"Two-part polymer ammunition casing" was invented by John Cogger (Santa Ana, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of manufacturing a casing for an ammunition cartridge includes injection molding a first polymer forming a first part of the casing. The first part is cylindrically shaped along a longitudinal axis extending from a projectile end opposite a stepped end. The stepped end forms a first end of a mechanical connection. A portion of the injection mold is removed and an additional injection mold is disposed about the stepp...