Patents by Inventor Anthony Roy Wagstaff

Anthony Roy Wagstaff 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).

  • NEUTRAL, STABLE AND TRANSPARENT PHOTOCATALYTIC TITANIUM DIOXIDE SOLS
    Publication number: 20160228850
    Abstract: A method for preparing a neutral, stable and transparent photocatalytic titanium dioxide sol is provided. The method comprises (1) contacting an alkaline titanium dioxide sol with an alkaline peptizing agent to provide a peptized alkaline titanium dioxide sol; (2) neutralizing the peptized alkaline titanium dioxide sol; and (3) obtaining or collecting the neutral, stable and transparent photocatalytic titanium dioxide sol. The titanium dioxide sol is stable and transparent over a range of pH of about 7.0 to about 9.5. The titanium dioxide sol may include crystallites of titanium dioxide having an average particle size of less than about 10 nm with at least 90% of the crystallites being in the anatase form.
    Type: Application
    Filed: April 21, 2016
    Publication date: August 11, 2016
    Inventors: JULIE ELIZABETH KERROD, ANTHONY ROY WAGSTAFF
  • Neutral, stable and transparent photocatalytic titanium dioxide sols
    Patent number: 9352299
    Abstract: A method for preparing a neutral, stable and transparent photocatalytic titanium dioxide sol is provided. The method comprises (1) contacting an alkaline titanium dioxide sol with an alkaline peptizing agent to provide a peptized alkaline titanium dioxide sol; (2) neutralizing the peptized alkaline titanium dioxide sol; and (3) obtaining or collecting the neutral, stable and transparent photocatalytic titanium dioxide sol. The titanium dioxide sol is stable and transparent over a range of pH of about 7.0 to about 9.5. The titanium dioxide sol may include crystallites of titanium dioxide having an average particle size of less than about 10 nm with at least 90% of the crystallites being in the anatase form.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: May 31, 2016
    Assignee: Cristal USA Inc.
    Inventors: Julie Elizabeth Kerrod, Anthony Roy Wagstaff
  • Neutral, Stable and Transparent Photocatalytic Titanium Dioxide Sols
    Publication number: 20130122074
    Abstract: A method for preparing a neutral, stable and transparent photocatalytic titanium dioxide sol is provided. The method comprises (1) contacting an alkaline titanium dioxide sol with an alkaline peptizing agent to provide a peptized alkaline titanium dioxide sol; (2) neutralizing the peptized alkaline titanium dioxide sol; and (3) obtaining or collecting the neutral, stable and transparent photocatalytic titanium dioxide sol. The titanium dioxide sol is stable and transparent over a range of pH of about 7.0 to about 9.5. The titanium dioxide sol may include crystallites of titanium dioxide having an average particle size of less than about 10 nm with at least 90% of the crystallites being in the anatase form.
    Type: Application
    Filed: November 16, 2012
    Publication date: May 16, 2013
    Inventors: Julie Elizabeth Kerrod, Anthony Roy Wagstaff