Patents by Inventor John Razafindrakoto

John Razafindrakoto 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 processing waste containing metal contaminants using a reducing agent
    Patent number: 6080224
    Abstract: The invention relates to a method for processing waste that contains contaminants. The contaminants may be metals modified by carbon, oxygen, phosphorus, or sulfur. The waste in the form of a powder is mixed with an ionic reducing agent in an inert liquid medium. The mixture is melted to give a first liquid phase and a second metal phase. The two phases are separated and solidified to enable disposal or temporary storage of the first liquid phase and to enable recycling of the second metal phase. The method is useful for inerting or reclaiming waste containing metal contaminants.
    Type: Grant
    Filed: April 22, 1998
    Date of Patent: June 27, 2000
    Assignee: Cernix
    Inventors: Jean-Michel Turmel, Jean Rocherulle, Paul Grange, John Razafindrakoto, Patrick Verdier, Yves Laurent