ALEXANDRIA, Va., June 17 -- United States Patent no. 12,313,359, issued on May 27, was assigned to Smith & Wesson Inc. (Springfield, Mass.).
"Expansion-compression baffle" was invented by Joe DeJessa (West Brookfield, Mass.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A suppressor baffle and a suppressor for a firearm. The suppressor includes a firearm attachment portion, a sleeve portion, and a baffle assembly with a plurality of baffles. At least one of the baffles includes a tubular body with a proximal exterior surface. The proximal exterior surface has a plurality of spaced-apart annular ridges. A first annular ridge includes a first annular compression surface and a first annular expansion surface, a...