Patents by Inventor Edouard Mathieu

Edouard Mathieu 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 the stabilization of alkylbenzenesulphonates
    Patent number: 6087529
    Abstract: To improve color and odor characteristics of sulfonic acids and their derivatives while maintaining sludge and sulfuric acid reduction and good thermal stability, they are treated with at least one unsaturated hydrocarbon, each having at most 36 carbon atoms and having defined substitution characteristics.
    Type: Grant
    Filed: September 1, 1998
    Date of Patent: July 11, 2000
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Edouard Mathieu, Dominique Moulin, Jean Michel Legac, Olivier Letailleur