Patents by Inventor Robin A. Withers

Robin A. Withers 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).

  • Method of converting resin solution to aqueous dispersion
    Patent number: 4383056
    Abstract: Solutions of amine-salified phosphoresins and the free amine in organic solvents are converted to stable dispersions of the salified resins in water by steam stripping under conditions such that at least part of the water is provided as condensed steam.
    Type: Grant
    Filed: December 10, 1981
    Date of Patent: May 10, 1983
    Assignee: The Dow Chemical Company
    Inventors: Alvin W. Baker, Robert DeVellis, Patrick H. Martin, Robin A. Withers