Patents by Inventor Kate Sproul

Kate Sproul 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 AQUEOUS WAX EMULSIONS
    Publication number: 20170233294
    Abstract: Wax emulsions for the manufacture of wallboard include water; a lignosulfonic acid or a salt thereof; and at least one wax selected from the group consisting of slack wax, paraffin wax and montan wax. The emulsions may have a pH of between about 6.5 and 7.9. Such emulsions can provide enhanced moisture resistance to the wallboard.
    Type: Application
    Filed: October 17, 2016
    Publication date: August 17, 2017
    Inventors: Amba AYAMBEM, Kate SPROUL, Alex GONZALEZ
  • Neutral aqueous wax emulsions
    Patent number: 9732003
    Abstract: Wax emulsions for the manufacture of wallboard include water; a lignosulfonic acid or a salt thereof; and at least one wax selected from the group consisting of slack wax, paraffin wax and montan wax. The emulsions may have a pH of between about 6.5 and 7.9. Such emulsions can provide enhanced moisture resistance to the wallboard.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: August 15, 2017
    Assignee: Henry Company LLC
    Inventors: Amba Ayambem, Kate Sproul, Alex Gonzalez
  • Neutral aqueous wax emulsions
    Patent number: 9670097
    Abstract: Wax emulsions for the manufacture of wallboard include water; a lignosulfonic acid or a salt thereof; and at least one wax selected from the group consisting of slack wax, paraffin wax and montan wax. The emulsions may have a pH of between about 6.5 and 7.9. Such emulsions can provide enhanced moisture resistance to the wallboard.
    Type: Grant
    Filed: June 2, 2014
    Date of Patent: June 6, 2017
    Assignee: Henry Company LLC
    Inventors: Amba Ayambem, Alex Gonzalez, Kate Sproul