US Patent Issued to L'Air Liquide Societe Anonyme Pour l'Etude et l'Exploitation des Procedes Georges Claude on Dec. 23 for "Method and apparatus for liquefying a CO 2 -rich gas" (French Inventors)

ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,504,226, issued on Dec. 23, was assigned to L'Air Liquide Societe Anonyme Pour l'Etude et l'Exploitation des Procedes Georges Claude (Paris).

"Method and apparatus for liquefying a CO 2 -rich gas" was invented by Michael Tran (Champigny sur Marne, France), Ludovic Granados (Champigny sur Marne, France), Mathieu Leclerc (Champigny sur Marne, France), Guillaume Rodrigues (Champigny sur Marne, France) and Aurore Troptard (Champigny sur Marne, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus for separation of a flow containing at least 95 mol % of carbon dioxide and also at least one impurity lighter than carbon dioxide by distillation com...