Patents by Inventor Kevin S. Matocha

Kevin S. Matocha 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: 7112796
    Abstract: An optical spectrometer for combustion flame temperature determination includes at least two photodetectors positioned for receiving light from a combustion flame, each of the at least two photodetectors having a different, overlapping bandwidth for detecting a respective output signal in an ultraviolet emission band; and a computer for subtracting a respective output signal of a first one of the at least two photodetectors from a respective output signal of a second one of the at least two photodetectors to obtain a segment signal, and using the segment signal to determine the combustion flame temperature.
    Type: Grant
    Filed: November 6, 2003
    Date of Patent: September 26, 2006
    Assignee: General Electric Company
    Inventors: Dale M Brown, Peter M Sandvik, Jeffrey B Fedison, Kevin S Matocha, Thomas E Johnson
  • Patent number: 7002156
    Abstract: A detection system for detecting gamma rays including a scintillator crystal for receiving at least one gamma ray and generating at least one ultraviolet ray and an avalanche photodiode for detecting the ultraviolet ray. The avalanche photodiode includes: a substrate having a first dopant; a first layer having a second dopant, positioned on top of the substrate; a passivation layer for providing electrical passivation on a surface of the avalanche photodiode; a phosphorous silicate glass layer for limiting mobile ion transport, positioned above of the first layer; and a pair of metal electrodes for providing an ohmic contact wherein a first electrode is positioned below the substrate and a second electrode is positioned above the first layer. The avalanche photodiode comprises a first sidewall and a second sidewall forming a sloped mesa shape.
    Type: Grant
    Filed: November 19, 2004
    Date of Patent: February 21, 2006
    Assignee: General Electric Company
    Inventors: Peter M. Sandvik, Dale M. Brown, Stephen D. Arthur, Kevin S. Matocha, James W. Kretchmer
  • Patent number: 6838741
    Abstract: An aspect of the present invention is directed to an avalanche photodiode (APD) device for use in oil well drilling applications in harsh, down-hole environments where shock levels are near 250 gravitational acceleration (G) and/or temperatures approach or exceed 150° C. Another aspect of the present invention is directed to an APD device fabricated using SiC materials. Another aspect of the present invention is directed to an APD device fabricated using GaN materials.
    Type: Grant
    Filed: December 10, 2002
    Date of Patent: January 4, 2005
    Assignee: General Electtric Company
    Inventors: Peter M. Sandvik, Dale M. Brown, Stephen D. Arthur, Kevin S. Matocha, James W. Kretchmer
  • Patent number: 6784430
    Abstract: A flame sensor for combustion flame temperature determination comprises elongated extensions that are positioned with parallel interdigitated longitudinal axis with respect to one another. An optical spectrometer comprises the sensor and a system comprises the sensor. A method for combustion flame temperature determination comprises obtaining a first photodiode signal and a second photodiode signal by using photodiode devices comprising photodiodes with elongated extending interdigitated digits. A method of fabricating a flame sensor for combustion flame temperature determination, comprises forming first and second photodiodes with elongated extending interdigitated digits.
    Type: Grant
    Filed: October 23, 2002
    Date of Patent: August 31, 2004
    Assignee: General Electric Company
    Inventors: Kevin S. Matocha, Jeffrey B. Fedison, James W. Kretchmer, Dale M. Brown, Peter M. Sandvik
  • Publication number: 20040108530
    Abstract: An aspect of the present invention is directed to an avalanche photodiode (APD) device for use in oil well drilling applications in harsh, down-hole environments where shock levels are near 250 gravitational acceleration (G) and/or temperatures approach or exceed 150° C. Another aspect of the present invention is directed to an APD device fabricated using SiC materials. Another aspect of the present invention is directed to an APD device fabricated using GaN materials.
    Type: Application
    Filed: December 10, 2002
    Publication date: June 10, 2004
    Applicant: General Electric Company
    Inventors: Peter M. Sandvik, Dale M. Brown, Stephen D. Arthur, Kevin S. Matocha, James W. Kretchmer
  • Publication number: 20040089810
    Abstract: An optical spectrometer for combustion flame temperature determination includes at least two photodetectors positioned for receiving light from a combustion flame, each of the at least two photodetectors having a different, overlap ping bandwidth for detecting a respective output signal in an ultraviolet emission band; and a computer for subtracting a respective output signal of a first one of the at least two photodetectors from a respective output signal of a second one of the at least two photodetectors to obtain a segment signal, and using the segment signal to determine the combustion flame temperature.
    Type: Application
    Filed: November 6, 2003
    Publication date: May 13, 2004
    Applicant: General Electric Compamy
    Inventors: Dale M. Brown, Peter M. Sandvik, Jeffrey B. Fedison, Kevin S. Matocha, Thomas E. Johnson
  • Publication number: 20030080294
    Abstract: A flame sensor for combustion flame temperature determination, comprising a first photodiode formed with elongated extending digits, and having a range of optical responsivity within an OH band for producing a first output signal; and a second photodiode formed with for receiving light from a combustion flame and having a range of optical responsivity in a different and overlapping portion of the OH band than the first photodiode device OH band for producing a second output signal; wherein the elongated extensions are positioned with parallel interdigitated longitudinal axis with respect to one another. An optical spectrometer comprises the sensor and a system comprises the sensor.
    Type: Application
    Filed: October 23, 2002
    Publication date: May 1, 2003
    Inventors: Kevin S. Matocha, Jeffrey B. Fedison, James W. Kretchmer, Dale M. Brown, Peter M. Sandvik