Patents by Inventor Jean-Luc Levesque

Jean-Luc Levesque 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 apparatus for dissipating high frequency energy inside a material to be treated
    Patent number: 3980855
    Abstract: Method and apparatus for dissipating high frequency electromagnetic energy inside a material. The apparatus comprises a conductive jacket defining a resonant chamber, a coil inside said chamber connected to a coaxial cable supplied by a high frequency generator, the frequency of which is equal to the resonant frequency of the chamber. The impedance of the resonator and its contents is matched to that of the coaxial cable. Automatic means may be provided for altering the resonator impedance to compensate for changes in load impedance.
    Type: Grant
    Filed: March 22, 1973
    Date of Patent: September 14, 1976
    Assignee: L'Oreal
    Inventors: Georges Boudouris, Gregoire Kalopissis, Paul Roussopoulos, Jean-Luc Levesque