Patents by Inventor Keith R. Nicholson

Keith R. Nicholson 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 production of carbonaceous chars having catalytic activity
    Patent number: 6534442
    Abstract: A process is provided for the production of a catalytically active carbonaceous char. By this process, a nitrogen-containing compound is combined with an uncarbonized nitrogen-poor carbon-containing material. The resulting mixture is then carbonized and oxidized at temperatures less than 500° C. The resulting char is next heated to temperatures greater than 500° C and subsequently activated with H2O, CO2, or O2, singly or in any combination, to result in the catalytically active carbonaceous char. The resulting catalytically active carbonaceous char has utility for the chemical conversion of peroxides, hydrides, SOX, NOX, and chloramines in liquid and/or gaseous media.
    Type: Grant
    Filed: July 16, 1999
    Date of Patent: March 18, 2003
    Assignee: Caigon Carbon Corporation
    Inventors: Robert H. Vaughn, Keith R. Nicholson, Toan P. Vo
  • Process for production of carbonaceous chars having catalytic activity
    Patent number: 6342129
    Abstract: A process is provided for the production of a catalytically-active carbonaceous char. By this process, a nitrogen-containing compound is combined with an uncarbonized nitrogen-poor carbon-containing material. The resulting mixture is then carbonized and oxidized at temperatures less than 600° C. The resulting low-temperature char is next heated to temperatures greater than 600° C. and subsequently activated with H2O, CO2, or O2, singly or in any combination, to result in the catalytically-active carbonaceous char. The resulting catalytically-active carbonaceous char has utility for the chemical conversion of peroxides, hydrides, SOx, NOx, and chloramines in liquid and/or gaseous media.
    Type: Grant
    Filed: May 14, 1998
    Date of Patent: January 29, 2002
    Assignee: Calgon Carbon Corporation
    Inventors: Robert H. Vaughn, Keith R. Nicholson