ALEXANDRIA, Va., June 17 -- United States Patent no. 12,311,305, issued on May 27, was assigned to Marathon Petroleum Co. LP (Findlay, Ohio).

"Removable flue gas strainer and associated methods" was invented by Michael Esquivel (Findlay, Ohio) and Ethan Spielvogel (Findlay, Ohio).

According to the abstract* released by the U.S. Patent & Trademark Office: "Apparatuses, systems, and methods operable to reduce catalyst fouling by removing solid particulates from a heated fluid stream upstream of a catalyst using one or more flue gas strainer apparatuses that may be cleaned or serviced without ceasing or disrupting heating or catalytic operations. The flue gas strainer apparatuses may include a housing having a front end and a back end, the h...