ALEXANDRIA, Va., Feb. 12 -- United States Patent no. 12,221,583, issued on Feb. 11, was assigned to MARATHON PETROLEUM COMPANY LP (Findlay, Ohio).

"Assemblies and methods for enhancing control of hydrotreating and fluid catalytic cracking (FCC) processes using spectroscopic analyzers" was invented by Jeffrey A. Sexton (Findlay, Ohio), Roy Roger Bledsoe Jr. (Findlay, Ohio), Lance T. Campbell (Findlay, Ohio), Randy N. Ridge (Findlay, Ohio) and Brian K. Wilt (Findlay, Ohio).

According to the abstract* released by the U.S. Patent & Trademark Office: "Assemblies and methods to enhance hydrotreating and fluid catalytic cracking (FCC) processes associated with a refining operation, during the processes, may include supplying a hydrocarbon feedst...