Patents by Inventor Marc M. Durrieu

Marc M. Durrieu 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).

  • Recovery and treatment of viscous petroleum emulsions
    Patent number: 4464057
    Abstract: Apparatus for use in the treatment and recovery of viscous petroleum emulsions comprises a leaktight chamber in which a reduced pressure is established, the chamber having an inlet connected to a feedpipe for sucking up emulsion. A mixer is connected on the feedpipe and a demulsifier is supplied to the mixer simultaneously with the emulsion so that the emulsion mixed with demulsifier is fed to the chamber.
    Type: Grant
    Filed: December 13, 1982
    Date of Patent: August 7, 1984
    Assignee: Compagnie Francaise des Petroles
    Inventors: Marc M. Durrieu, Jean-Pierre Thery