Patents by Inventor William D. Duke

William D. Duke 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).

  • Patent number: 8313709
    Abstract: A method for removing contaminants from a process stream that includes the use of reticulated material to filter the process stream in a vessel located upstream of a process unit. The reticulated material can be used with other conventional filter media within the vessel.
    Type: Grant
    Filed: May 21, 2008
    Date of Patent: November 20, 2012
    Assignee: Crystaphase International, Inc.
    Inventors: John N. Glover, William D. Duke, Peter G. Ham
  • Publication number: 20080296216
    Abstract: A method for removing contaminants from a process stream that includes the use of reticulated material to filter the process stream in a vessel located upstream of a process unit. The reticulated material can be used with other conventional filter media within the vessel.
    Type: Application
    Filed: May 21, 2008
    Publication date: December 4, 2008
    Inventors: John N. Glover, William D. Duke, Peter G. Ham
  • Patent number: 7393510
    Abstract: A method for removing contaminants from a process stream that includes the use of reticulated material to filter the process stream in a vessel located upstream of a process unit. The reticulated material can be used with other conventional filter media within the vessel.
    Type: Grant
    Filed: June 14, 2004
    Date of Patent: July 1, 2008
    Assignee: Crystaphase International, Inc.
    Inventors: John N. Glover, William D. Duke, Peter G. Ham
  • Publication number: 20040225085
    Abstract: A method for removing contaminants from a process stream that includes the use of reticulated material to filter the process stream in a vessel located upstream of a process unit. The reticulated material can be used with other conventional filter media within the vessel.
    Type: Application
    Filed: June 14, 2004
    Publication date: November 11, 2004
    Inventors: John N. Glover, William D. Duke, Peter G. Ham