ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,545,845, issued on Feb. 10, was assigned to Phillips 66 Co. (Houston).
"Decreasing heavy gasoil fouling" was invented by Jinfeng Lai (Bartlesville, Okla.) and Leonard Nyadong (Collinsville, Okla.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Processes for rapidly and accurately predicting the fouling potential of a heavy petroleum fraction in a commercial refinery, informing the selection of one or more interventions to prevent or decrease the rate of said fouling. The process utilizes several specialized 13C Nuclear Magnetic Resonance procedures to more accurately quantify tertiary and quaternary bridgehead aromatic carbon in the heavy petroleum fract...