US Patent Issued to CERTAINTEED on Feb. 25 for "Roofing product including bio-based asphalt mixture and methods of making the roofing product and the roofing-grade asphalt mixture" (Pennsylvania, New Jersey, Maine Inventors)

ALEXANDRIA, Va., Feb. 26 -- United States Patent no. 12,234,648, issued on Feb. 25, was assigned to CERTAINTEED LLC (Malvern, Pa.).

"Roofing product including bio-based asphalt mixture and methods of making the roofing product and the roofing-grade asphalt mixture" was invented by Keith C. Hong (Lititz, Pa.), Gregory F Jacobs (Sullivan, Maine) and Rajesh Ranjan (Princeton, N.J.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of forming an asphalt mixture includes mixing a polyol with a bio-source material to form a bio-asphalt. The method can further include mixing the bio-asphalt with a bitumen source different from the bio-asphalt to form an asphalt mixture. The bio-source material can include an o...