Patents by Inventor William A. Frederick

William A. Frederick 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).

  • Lamp sheath assembly for optically-assisted gas decontamination process
    Patent number: 5138175
    Abstract: The present invention comprises a process for the removal of oxides of nitrogen and sulfur from a gas mixture containing those species by exposure of the gas mixture to ultraviolet radiation having a wavelength below 220 nanometers.
    Type: Grant
    Filed: January 11, 1991
    Date of Patent: August 11, 1992
    Assignee: Lehigh University
    Inventors: Yong W. Kim, William A. Frederick
  • Optically-assisted gas decontamination process
    Patent number: 4995955
    Abstract: The present invention comprises a process for the removal of oxides of nitrogen and sulfur from a gas mixture containing those species by exposure of the gas mixture to ultraviolet radiation having a wavelength below 200 nanometers in absence of ammonia.
    Type: Grant
    Filed: April 26, 1990
    Date of Patent: February 26, 1991
    Assignee: Lehigh University
    Inventors: Yong W. Kim, William A. Frederick