ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,703,796, issued on Aug. 11, was assigned to A.L.M. Holding Co. (Onalaska, Wis.) and Ergon Asphalt & Emulsions Inc. (Jackson, Miss.).
"Sterol in asphalt roofing materials" was invented by Gerald H. Reinke (La Crosse, Wis.), Gaylon L. Baumgardner (Arkadelphia, Ark.) and Andrew Hanz (La Crosse, Wis.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are compositions and methods of making and using asphalt roofing materials. The asphalt roofing materials include sterols. The sterols improve various rheological and aging properties of the asphalt roofing materials."
The patent was filed on July 15, 2020, under Application No. 17/627,491.
*For further...