ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,521,691, issued on Jan. 13, was assigned to L'Air Liquide Societe Anonyme Pour l'Etude et l'Exploitation des Procedes Georges Claude (Paris).

"Product gas manifold system for a steam reformer" was invented by Tobias Kaiser (Reichelsheim, Germany) and Antonio Coscia (Hadamar, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A product gas manifold system for a steam reformer is provided. The product gas manifold system includes a product gas manifold including an outer jacket tube and a gas-conveying inner tube extending concentrically and coaxially over its entire length, a space between the inner and jacket tubes being at least partially filled wi...