ALEXANDRIA, Va., April 9 -- United States Patent no. 12,270,253, issued on April 8, was assigned to Patriot3 Inc. (Fredericksburg, Va.).

"Convertible ramp system and tactical vehicle incorporating a convertible ramp system" was invented by Charles Louis Fuqua (Woodbridge, Va.) and Steven Scott Kahre (Spotsylvania, Va.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A convertible ramp system facilitates transfer of personnel between spaced elevations. The ramp system includes a deck assembly, a convertible main ramp, and a convertible extension ramp. The convertible main ramp has a proximal end hinged to the deck assembly and a distal end adapted for being mechanically lifted and lowered relative to the deck a...