Patents by Inventor Françoise Massines

Françoise Massines 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 and device for surface treatment with a plasma at atmospheric pressure
    Patent number: 6299948
    Abstract: Method for creating an electric discharge in an initial gas which is at atmospheric pressure and lies between two exciting electrodes, comprising applying a supply voltage to the two electrodes which is an AC voltage whose amplitude and frequency are adapted in order to maintain (1) at least a portion of the components of the gas in the excited state, and/or (2) the presence of electrons, between two successive half-cycles of the supply voltage.
    Type: Grant
    Filed: April 9, 1999
    Date of Patent: October 9, 2001
    Assignees: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude, Softal Electronic
    Inventors: Nicolas Gherardi, Gamal Gouda, Françoise Massines, Alain Villermet, Eric Gat