ALEXANDRIA, Va., June 17 -- United States Patent no. 12,313,388, issued on May 27, was assigned to Federal Cartridge Co. (Anoka, Minn.).
"Biodegradable shotshell components" was invented by Alex R. Schmieg (Big Lake, Minn.), Robert A. Strange (Isanti, Minn.), Anthony C. Stockey (Hugo, Minn.), Steven P. Schommer (Isanti, Minn.) and Adam J. Moser (Big Lake, Minn.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Devices and methods for shotshell cartridges, particularly shotshell cartridges with biodegradable components. One or more of the casing, shot wad, spacer, and powder wad may be formed of biodegradable materials. A biodegradable shot wad is manufactured of cellulosic fibers and wax to provide obturation a...