ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,747,159, issued on Sept. 29, was assigned to BASF SE (Ludwigshafen am Rhein, Germany).

"Circular carbon process" was invented by Andreas Bode (Ludwigshafen, Germany), Dieter Flick (Ludwigshafen, Germany) and Andreas Spiegel (Ludwigshafen, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A circular carbon process involves: a) reacting hydrogen and carbon monoxide to produce methane and water, b) decomposing methane into carbon and hydrogen, and c) using carbon as reducing agent and/or using carbon in a carbon-containing material as reducing agent, in a chemical process to produce carbon monoxide and a reduced substance. The methane produced in a) ...