US Patent Issued to L'Air Liquide Societe Anonyme Pour l'Etude et l'Exploitation des Procedes Georges Claude on May 27 for "Method for starting up an argon separation column of an apparatus for air separation by cryogenic distillation and unit for implementing the method" (French Inventors)

ALEXANDRIA, Va., June 17 -- United States Patent no. 12,313,336, issued on May 27, was assigned to L'Air Liquide Societe Anonyme Pour l'Etude et l'Exploitation des Procedes Georges Claude (Paris).

"Method for starting up an argon separation column of an apparatus for air separation by cryogenic distillation and unit for implementing the method" was invented by Antonio Trueba (Paris), David Bednarski (Paris) and Bernard Saulnier (Jouy-en-Josas, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A unit for producing argon by cryogenic distillation, suitable for connection to a double air separation column consisting of first and second columns interconnected thermally, comprises an argon separation column s...