Patents by Inventor William A. Granger

William A. Granger 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 DELIVERING A PIGMENT DISPERSION AND RETENTION AID TO A PAPERMAKING PROCESS
    Publication number: 20140124153
    Abstract: The disclosure is directed toward methods for delivering a pigment dispersion and an inverted retention aid emulsion to a papermaking process. The method comprises injecting the pigment dispersion and the inverted retention aid emulsion into a process line of the papermaking process. The pigment dispersion comprises titanium dioxide, and the retention aid may comprise an anionic flocculant. The process line is located downstream from a screen and upstream from a headbox. The methods may incorporate the use of one or several nozzle devices.
    Type: Application
    Filed: November 1, 2013
    Publication date: May 8, 2014
    Applicant: Ecolab USA Inc.
    Inventors: William A. Granger, George L. Dennis, Tommy Jacobson