ALEXANDRIA, Va., July 23 -- United States Patent no. 12,366,426, issued on July 22.
"Sound suppressor for a shotgun" was invented by Miika Vanhatalo (Lasikangas, Finland).
According to the abstract* released by the U.S. Patent & Trademark Office: "A sound suppressor for a shotgun comprising a barrel is disclosed. The sound suppressor includes an outer frame, an inner hollow body including openings, a gas expansion area and a barrel attachment arrangement for attaching the sound suppressor onto the barrel. The sound suppressor is configured in such a way that when the sound suppressor is in use, the barrel is inside the outer frame and the shot of the shotgun passes through the inner hollow body, and the gases from the exploding propellant...