Patents by Inventor Michel Claveau

Michel Claveau 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 deasphalting a hydrocarbon oil
    Patent number: 4816140
    Abstract: For deasphalting an asphaltene-containing hydrocarbon oil, employed is a hydrocarbon solvent of 3-8 carbon atoms, resulting in an asphaltic phase and a solution of deasphalted oil in the solvent. The solvent is then separated from the deasphalted oil, by passing the solution tangentially across an inorganic membrane of pore radii from 2 to 15 nonometers: the obtained filtrate has an increased solvent content and may be recycled. The deasphalted oil is selectively retained on the upstream side of the membrane.
    Type: Grant
    Filed: April 1, 1987
    Date of Patent: March 28, 1989
    Assignees: Institut Francais du Petrole, Commissariat a l'Energie Atomique
    Inventors: Pierre Trambouze, Jean Paul Euzen, Pierre Bergez, Michel Claveau