Patents by Inventor Robert J. Waldrop

Robert J. Waldrop 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 treating stormwater runoff and domestic waste with high carbon ash
    Patent number: 7455780
    Abstract: A method of treating domestic wastewater wherein the wastewater is directed through a high carbon ash particulate. Contaminants such as phosphorus, nitrogen, BOD and COD can be removed. In addition, treatment of the domestic waste with ash will raise the pH of the wastewater, generally to above 10, killing bacteria contained in the wastewater.
    Type: Grant
    Filed: March 13, 2007
    Date of Patent: November 25, 2008
    Inventors: Bobby L. Joyner, Robert J. Waldrop
  • A METHOD OF TREATING STORMWATER RUNOFF AND DOMESTIC WASTE WITH COAL ASH
    Publication number: 20070295661
    Abstract: A method of treating wastewater, and more particularly stormwater runoff or domestic waste, wherein the wastewater is directed through a high carbon ash particulate. Contaminants such as phosphorus, nitrogen, BOD and COD can be removed. In addition, treatment of the stormwater runoff or domestic waste with ash will raise the pH of the wastewater, generally to above 10, killing bacteria contained in the wastewater.
    Type: Application
    Filed: June 22, 2006
    Publication date: December 27, 2007
    Inventors: Bobby L. Joyner, Robert J. Waldrop
  • Method of treating stormwater runoff and domestic waste with coal ash
    Patent number: 7311844
    Abstract: A method of treating wastewater, and more particularly stormwater runoff or domestic waste, wherein the wastewater is directed through a high carbon ash particulate. Contaminants such as phosphorus, nitrogen, BOD and COD can be removed. In addition, treatment of the stormwater runoff or domestic waste with ash will raise the pH of the wastewater, generally to above 10, killing bacteria contained in the wastewater.
    Type: Grant
    Filed: June 22, 2006
    Date of Patent: December 25, 2007
    Inventors: Bobby L. Joyner, Robert J. Waldrop