Patents by Inventor Robert Aude

Robert Aude 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 manufacturing petroleum sulfonates and the resultant products
    Patent number: 4290973
    Abstract: Petroleum sulfonates are manufactured by reacting a hydrocarbon stock with a sulfonating agent and neutralizing the sulfonation product. The hydrocarbon stock is pretreated with hydrogen, in the presence of a NiW or NiMo catalyst, under specified conditions: its sulfur content is decreased by at least 50%, but its aromatic hydrocarbon content is decreased by not more than 35%, so that the aromatic hydrocarbons content remains at least 20% b.w. after completion of the pretreatment.
    Type: Grant
    Filed: April 17, 1980
    Date of Patent: September 22, 1981
    Assignee: Institut Francais du Petrole
    Inventors: Robert Aude, Pierre Baumgartner, Jean-Pierre Desmarquest, Jean-Pierre Franck