ALEXANDRIA, Va., June 18 -- United States Patent no. 12,325,797, issued on June 10, was assigned to Bridgestone Americas Tire Operations LLC (Nashville, Tenn.).
"Tire tread rubber composition and related methods" was invented by Jamie L. Whyte (Kent, Ohio), Anthony M. Unger (New Albany, Ohio), Kenny L. Howman (Ashland, Ohio) and Benjamin C. Galizio (Munroe Falls, Ohio).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed herein are tire tread rubber compositions comprising a specified elastomer component, reinforcing silica filler, a specified hydrocarbon resin, liquid plasticizer, and a cure package. The elastomer component includes styrene-butadiene rubber and polybutadiene and also may include a limite...