ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,460,888, issued on Nov. 4, was assigned to Sig Sauer Inc. (Newington, N.H.).

"Suppressor with gas cross flow and reduced back pressure" was invented by Krzysztof J. Kras (Freemont, N.H.) and Evan Miller (Exeter, N.H.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A suppressor for a firearm has a tubular housing extending along a bore axis from a proximal end to a distal end. A baffle stack within the hollow tubular housing extends along the bore axis and includes a tubular baffle wall with a plurality of baffle structures connected to an inside of the tubular baffle wall, where individual baffle structures taper proximally to a central opening on the bor...