US Patent Issued to L'Air Liquide Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude, Institut National de Recherche pour l'Agriculture l'Alimentation et l'Environnement on June 24 for "Recovery of methane from solid digestates" (French Inventors)

ALEXANDRIA, Va., June 25 -- United States Patent no. 12,338,477, issued on June 24, was assigned to L'Air Liquide Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude (Paris) and Institut National de Recherche pour l'Agriculture l'Alimentation et l'Environnement (Paris).

"Recovery of methane from solid digestates" was invented by Aude Bertrandias (Paris), Ulysse Bremond (Paris), Jean-Philippe Steyer (Paris) and Helene Carrere (Paris).

According to the abstract* released by the U.S. Patent & Trademark Office: "Process for producing biogas from a digestate obtained from a digester, said process comprising a step of recovering the digestate at the outlet of a digester, a post-digester or a storage tank; a step of separa...