Patents by Inventor Mac Clements CHAPMAN

Mac Clements CHAPMAN 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).

  • Radioactive anomaly discrimination from spectral ratios
    Patent number: 8513618
    Abstract: A method for discriminating a radioactive anomaly from naturally occurring radioactive materials includes detecting a first number of gamma photons having energies in a first range of energy values within a predetermined period of time and detecting a second number of gamma photons having energies in a second range of energy values within the predetermined period of time. The method further includes determining, in a controller, a ratio of the first number of gamma photons having energies in the first range and the second number of gamma photons having energies in the second range, and determining that a radioactive anomaly is present when the ratio exceeds a threshold value.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: August 20, 2013
    Assignee: Quintell of Ohio, LLC
    Inventors: James Maniscalco, Glenn Sjoden, Mac Clements Chapman
  • RADIOACTIVE ANOMALY DISCRIMINATION FROM SPECTRAL RATIOS
    Publication number: 20120161028
    Abstract: A method for discriminating a radioactive anomaly from naturally occurring radioactive materials includes detecting a first number of gamma photons having energies in a first range of energy values within a predetermined period of time and detecting a second number of gamma photons having energies in a second range of energy values within the predetermined period of time. The method further includes determining, in a controller, a ratio of the first number of gamma photons having energies in the first range and the second number of gamma photons having energies in the second range, and determining that a radioactive anomaly is present when the ratio exceeds a threshold value.
    Type: Application
    Filed: December 28, 2011
    Publication date: June 28, 2012
    Applicant: QUINTELL OF OHIO, LLC
    Inventors: Mac Clements CHAPMAN, James MANISCALCO, Glenn SJODEN