Patents by Inventor John L. Graham

John L. Graham 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 and apparatus for photothermal destruction of toxic organic compounds contained in a gas stream
    Patent number: 5650549
    Abstract: A method and apparatus for photothermal detoxification of toxic organic compounds are provided. The apparatus comprises a means for maintaining the gas stream from the targeted source at a temperature of greater than 200.degree. C., an optional air pollution control device, a radiation source which emits radiation at a wavelength of less than 320 nm and an outlet for releasing the nontoxic reaction products to the atmosphere.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: July 22, 1997
    Assignee: The University of Dayton
    Inventors: Harold Barrett Dellinger, John L. Graham
  • Method for photothermal destruction of toxic organic compounds
    Patent number: 5417825
    Abstract: A method and apparatus for photothermal detoxification of toxic organic compound is provided. The apparatus includes a thermally insulated reaction vessel maintained at a temperature greater than 200.degree. C., and a radiation source such as arc emission or a laser which irradiates the compound at a wavelength of less than 300 nm for at least 2 seconds to produce nontoxic reaction products.
    Type: Grant
    Filed: April 28, 1993
    Date of Patent: May 23, 1995
    Assignee: University of Dayton
    Inventors: John L. Graham, H. Barrett Dellinger
  • Radial arm saw - router adapter
    Patent number: D336482
    Type: Grant
    Filed: September 16, 1991
    Date of Patent: June 15, 1993
    Inventor: John L. Graham