Patents by Inventor Philippe Urner

Philippe Urner has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6348083
    Abstract: An installation and a process for the recovery and/or purification of at least one portion of the nitrous oxide (N2O) contained in a flow of waste gas containing nitrous oxide and at least one other gaseous compound, in which: (a) at least one nitrous oxide portion contained in the flow of waste gas is separated by permeation, and (b) at least a portion of the gaseous nitrous oxide separated in step (a) is recovered. Preferably, the source of the flow of waste gas is an industrial unit using an industrial process giving off the waste gas, preferably a unit for the production of adipic acid, a unit for the production of nitrous oxide, a unit for the production of glycoxylic acid or a unit for the production of nitric acid.
    Type: Grant
    Filed: February 17, 2000
    Date of Patent: February 19, 2002
    Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Gilbert Chevalier, Philippe Urner