Patents by Inventor Paul M. Williamson

Paul M. Williamson 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).

  • Overbased magnesium sulfonate process
    Patent number: 4192758
    Abstract: An improvement in the method of preparing high alkali value overbased magnesium sulfonate lubricant additives from commmercially available grades of magnesium oxide is disclosed.
    Type: Grant
    Filed: May 1, 1978
    Date of Patent: March 11, 1980
    Assignee: Bray Oil Company, Inc.
    Inventors: Charles R. Dickey, Paul M. Williamson