Patents by Inventor James L. Thornley

James L. Thornley 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).

  • Mixture of portland cement concrete materials for freeze/thaw resistance
    Patent number: 5306344
    Abstract: The present invention is a specific combination of components having unique properties both in composition and benefits. Such a combination of portland cement type 1, fly ash type C in combination with a specific gradation of blast furnace slag and a specific gradation of fine aggregate in combination with a sodium lignosulfonic acid, sodium nitrate, sodium thiocyanate, triethanolamine, neutralized Vinsol resin and a coconut fatty acid diethanolamine.
    Type: Grant
    Filed: December 2, 1992
    Date of Patent: April 26, 1994
    Assignee: Edward C. Levy Company
    Inventors: Paul F. Gutmann, James L. Thornley