US Patent Issued to Brightmark Plastics Renewal Technologies on July 28 for "Hydrotreatment of pyrolyzed oil derived from plastic waste stock" (Ohio, Indiana Inventors)

ALEXANDRIA, Va., July 28 -- United States Patent no. 12,692,448, issued on July 28, was assigned to Brightmark Plastics Renewal Technologies LLC (San Francisco).

"Hydrotreatment of pyrolyzed oil derived from plastic waste stock" was invented by Richard K. Peterson (Huntertown, Ind.), Mehmet A. Gencer (Brecksville, Ohio) and Jay Schabel (Hiram, Ohio).

According to the abstract* released by the U.S. Patent & Trademark Office: "Contaminants of one or more compounds comprising olefins, various metals, heteroatoms comprising nitrogen, oxygen, phosphorous, sulfur, and silicon, various halogens, salts, and particulates, are typically contained in oil derived from the pyrolyzation of plastic waste material. These contaminants are removed by a pro...