ALEXANDRIA, Va., July 3 -- United States Patent no. 12,345,509, issued on July 1, was assigned to David D. Rankin Sr. (Yadkinville, N.C.).
"Non-lethal defensive fluid composition and pressurized delivery system" was invented by David Daniel Rankin Sr. (Yadkinville, N.C.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A lubric gel composition for personal defense includes a fatty acid at a concentration ranging from 5 wt % to 10 wt % of the composition, a thickening agent at a concentration ranging from 1.75 wt % to 8.75 wt % of the composition, a detergent at a concentration ranging from 1.03 wt % to 4.07 wt % of the composition, a surfactant at a concentration ranging from 2 wt % to 15 wt % of the compositio...