Patents by Inventor J. W. Sigan

J. W. Sigan 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).

  • Quaternized amidoamines
    Patent number: 4039565
    Abstract: Quaternary compounds having the structure ##STR1## are useful as fabric softeners.
    Type: Grant
    Filed: June 26, 1975
    Date of Patent: August 2, 1977
    Assignee: Ashland Oil, Inc.
    Inventors: Peter E. Throckmorton, J. W. Sigan, Robert B. McConnell