Patents by Inventor Frederic Pioger

Frederic Pioger 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).

  • Method for supplying gas to a chamber and method for regulating the content of a given element in the atmosphere of such a chamber
    Patent number: 6074203
    Abstract: The invention relates to a process for supplying gas to a chamber which is supplied via a supply network which includes at least one primary line connected in its upstream part to a supply of the said gas, and at least two respective secondary lines connected to the primary lines, being characterized in that the content of a given component of the atmosphere in the chamber is measured at least at one point in the chamber, the measured content is compared with at least one predetermined control value for the content of the said component of the atmosphere in the chamber at the said point and, where necessary, the pressure of the gas at one of the points in the network is varied, depending on the result of this comparison.
    Type: Grant
    Filed: August 20, 1998
    Date of Patent: June 13, 2000
    Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Marc Leturmy, Frederic Pioger