Patents by Inventor Andre Vigneron

Andre Vigneron 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 the rehabilitation of polluted soils and installation for the implementation of this method
    Patent number: 5544975
    Abstract: In a method for the rehabilitation of polluted soils by means of a third substance, the polluted soils, excavated and processed beforehand, are introduced into a contacting cell in the lower part of which the injection of the third substance, towards the lateral walls of said cell, forms a polluted solution subsequently collected in the upper part while the soils continuously separated from the polluted solution are recovered at the lower part of said cell before being rinsed and dried.
    Type: Grant
    Filed: September 28, 1994
    Date of Patent: August 13, 1996
    Assignee: Sarp Industries
    Inventors: Andre Vigneron, Jean-Pierre Codaccioni