ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,497,338, issued on Dec. 16, was assigned to Topsoe A/S (Kgs. Lyngby, Denmark) and P-D Refractories GmbH (Bochum, Germany).
"Shaped and fired zirconia refractory material" was invented by Johannes Ruben Larsen (Fredericia, Denmark), Fred Brunk (Hattingen, Germany), Thomas Sandahl Christensen (Kgs. Lyngby, Denmark) and Soren Gyde Thomsen (Kgs. Lyngby, Denmark).
According to the abstract* released by the U.S. Patent & Trademark Office: "A refractory lining in a combustion chamber operating in a reducing atmosphere. The lining includes at least one or more Zirconia (Zr)-based refractory lining members comprising one or more Zr-based parts. The Zr-based parts comprise at least 90 wt. %, p...