Patents by Inventor Dudley B. Pate

Dudley B. Pate 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 for abandoning an underground storage tank
    Patent number: 5350691
    Abstract: A method of abandoning an underground storage tank including the steps of: removing residuals, if any, from the tank and filling the tank with a mixture which includes water, sand, a binding agent and a material for promoting uniform mixing of said mixture. In one embodiment of the invention, a surfactant is added to reduce the amount of water required by the mixture.
    Type: Grant
    Filed: June 11, 1993
    Date of Patent: September 27, 1994
    Inventors: Richard C. Hannay, Dudley B. Pate