Patents by Inventor Jean P. Heraud

Jean P. Heraud 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).

  • Sulphonic acids and sulphonates
    Patent number: 4153627
    Abstract: Sulphonic acids and sulphonates containing olefines and optionally water which improve color and thermal stability and also simplify purification of the acid.
    Type: Grant
    Filed: February 14, 1977
    Date of Patent: May 8, 1979
    Assignee: Exxon Research & Engineering Co.
    Inventors: Pierre Delbende, Jean P. Heraud