Patents by Inventor Robert J. Cundiff

Robert J. Cundiff 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).

  • Process for dye removal
    Patent number: 5750035
    Abstract: A process for dye removal from effluent is disclosed which includes treating the effluent with a reducing agent, adjusting the pH to a selected value in the range of 2-7, treating the effluent with a particular charge neutralization mixture, adjusting the pH a second time and subjecting the mixture to a flocculating process with selected chemicals.
    Type: Grant
    Filed: September 20, 1996
    Date of Patent: May 12, 1998
    Assignee: Hoechst Celanese Corporation
    Inventors: Paul W. Shepperd, III, Larry W. Becker, Robert J. Cundiff
  • Process for dye removal
    Patent number: 5611934
    Abstract: A process for dye removal from effluent is disclosed which includes treating the effluent with a reducing agent, adjusting the pH to a selected value in the range of 2-7, treating the effluent with a particular charge neutralization mixture, adjusting the pH a second time and subjecting the mixture to a flocculating process with selected chemicals.
    Type: Grant
    Filed: December 18, 1995
    Date of Patent: March 18, 1997
    Assignee: Hoechst Celanese Corporation
    Inventors: Paul W. Shepperd, III, Larry W. Becker, Robert J. Cundiff