ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,503,656, issued on Dec. 23, was assigned to KELLOGG BROWN & ROOT LLC (Houston).

"Fluidization of catalyst in lateral sections of a system" was invented by Steve Arthur Tragesser (Houston), Matthew James Griffiths (Arlington Heights, Ill.), Narinder Singh Duggal (Haryana, India), Rahul Saxena (Haryana, India) and Akhilesh Pratap (Sugar Land, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system for processing a selected feedstock using a catalyst includes a reactor, a catalyst recovery system, and a conduit. The reactor receives the catalyst and the selected feedstock. A reaction between the selected feedstock and the catalyst generates a spent c...