Patents by Inventor Timothy L. Sweeney

Timothy L. Sweeney 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).

  • Water clarification
    Patent number: 5332506
    Abstract: The invention provides a method of recovering water from an acid workover, the water including dispersed solids and emulsified oil. According to the method, the water is treated with an effective amount of a dispersion of a water-soluble cationic polymer.
    Type: Grant
    Filed: December 13, 1993
    Date of Patent: July 26, 1994
    Assignee: Nalco Chemical Company
    Inventors: Robert A. Marble, Timothy L. Sweeney