ALEXANDRIA, Va., June 6 -- United States Patent no. 12,281,263, issued on April 22, was assigned to Saudi Arabian Oil Co. (Dhahran, Saudi Arabia).

"Plastic pyrolysis oil pretreatment" was invented by Omer Refa Koseoglu (Dhahran, Saudi Arabia).

According to the abstract* released by the U.S. Patent & Trademark Office: "Process for converting waste plastics to refining feedstock. The process includes conducting pyrolysis of a plastic feedstock comprising waste plastics to produce a liquid stream of plastic pyrolysis oil; directly feeding the liquid stream of plastic pyrolysis oil to an adsorption based purification process to generate a treated plastic pyrolysis oil stream; and collecting the treated plastic pyrolysis oil stream from the ad...