ALEXANDRIA, Va., June 19 -- United States Patent no. 12,330,979, issued on June 17, was assigned to Linde GmbH (Pullach, Germany).

"Method for operating a fired furnace and arrangement comprising such a furnace" was invented by Martin Adendorff (Munich), Marco Golbach (Munich), Michael Seys (Munich), Benjamin Hentschel (Munich) and Maximilian Jarosch (Zorneding, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention concerns a process for operating a fired furnace which is heated using a fuel gas stream and forming a combustion product stream, wherein heat of at least part of the combustion product stream is used in forming a steam stream. It is provided that at least a part of the steam stream...