Patents by Inventor Thomas Scott Hemphill

Thomas Scott Hemphill 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).

  • Fast UV-VIS-NIR absorption spectrometer system and method
    Patent number: 8120758
    Abstract: A method and system for evaluating a colored gem stone which has been cooled to below a designated temperature are provided. The system includes a cooling unit configured to support and cool a gem stone to below a desired temperature, an electromagnetic radiation source, a spectrometer, an integrating sphere, and a processing unit. The method includes receiving a spectral response of the colored gem stone and sampling a noise component within a range of wavelengths in the spectral response so as to make a baseline determination. The method further includes ascertaining a presence of at least one designated peak within the range of wavelengths as a function of the baseline determination, and evaluating the presence of each of the at least one designated peaks so as to provide an indication of whether the colored gem stone requires further evaluation.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: February 21, 2012
    Assignee: Gemological Institute of America, Inc.
    Inventors: Troy Blodgett, Matt Hall, Thomas Scott Hemphill, Wuyi Wang
  • Fast UV-VIS-NIR absorption spectrometer system and method
    Publication number: 20100220310
    Abstract: A method and system for evaluating a colored gem stone which has been cooled to below a designated temperature are provided. The system includes a cooling unit configured to support and cool a gem stone to below a desired temperature, an electromagnetic radiation source, a spectrometer, an integrating sphere, and a processing unit. The method includes receiving a spectral response of the colored gem stone and sampling a noise component within a range of wavelengths in the spectral response so as to make a baseline determination. The method further includes ascertaining a presence of at least one designated peak within the range of wavelengths as a function of the baseline determination, and evaluating the presence of each of the at least one designated peaks so as to provide an indication of whether the colored gem stone requires further evaluation.
    Type: Application
    Filed: February 27, 2009
    Publication date: September 2, 2010
    Inventors: Troy Blodgett, Matt Hall, Thomas Scott Hemphill, Wuyi Wang