Patents by Inventor Gérard Dechambre

Gérard Dechambre 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 packaging industrial, in particular radioactive, waste in apatite ceramics
    Patent number: 6459010
    Abstract: The invention involves a process for containment of industrial wastes, particularly nuclear wastes, in apatite ceramics. This process involves preparing a homogeneous mixture of powders which can form an apatite matrix, introducing the waste into this mixture, compacting it under a pressure of 100 to 500 MPa at room temperature, and subjecting it to hydrothermal processing at low temperature (100 to 500° C.) in the presence of water in a sealed chamber.
    Type: Grant
    Filed: June 23, 2000
    Date of Patent: October 1, 2002
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Joëlle Carpena, Benoît Donazzon, Jean-Louis Lacout, Gérard Dechambre