Patents by Inventor Edmond Julien

Edmond Julien 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).

  • Process for ultrafiltration of stabilized emulsions
    Patent number: 5498341
    Abstract: A process is provided for the ultrafiltration of stabilized emulsions, such as cutting oils, which comprises circulating the emulsion through a chamber partially bounded by a porous membrane, and before the emulsion enters the said chamber, a small quantity of salt is introduced into it, corresponding to a weight ratio of salt/oil present in the emulsion between 0.01 and 0.2.
    Type: Grant
    Filed: April 18, 1994
    Date of Patent: March 12, 1996
    Assignee: Elf Antar France
    Inventors: Aurelle Yves, Belkacem Mohamed, Hadjiev Dimitri, Edmond Julien, Cotteret Jacques
  • Method for treating a fuel comprising a mixture of hydrocarbons and alcohols, and a selective water-adsorption product
    Patent number: 4889537
    Abstract: A method for treating a fuel comprising a mixture of hydrocarbon(s) and alcohol(s) with a content by volume of alcohol less than 10%, the method comprising placing the fuel mixture in contact with at least one cationic exchange resin capable of strong dissociation into ion form in an aqueous medium, in particular a sulfonic or carboxylic resin which is prepared in potassium or magnesium form for adsorbing at least a portion of the water dissolved in the mixture on the resin so as to prevent segregation of the mixture and so as to stabilize the homogeneity of the fuel.
    Type: Grant
    Filed: May 12, 1986
    Date of Patent: December 26, 1989
    Assignee: ELF FRANCE Societe Anonyme
    Inventors: Yves Aurelle, Christian Bernasconi, Jean Besombes-Vailhe, Edmond Julien, Henri Roques