Patents by Inventor Douglas J. Paul

Douglas J. Paul 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).

  • Instrument and method for testing fluid characteristics
    Patent number: 6836332
    Abstract: An instrument for testing fluid characteristics has a vial and a housing. The vial defines a chamber for receiving a sample of the fluid and has a cap for sealing the fluid therein. The housing defines a recess for receiving the vial. Multiple light emitting diodes and photovoltaic detectors are arranged on multiple meridional planes within the housing. The meridional planes each intersect approximately at a central axis of the chamber when the vial is placed within the recess. Modulation of the light emitting diodes and tuned processing electronics allow for simultaneous evaluation of sample characteristics such as spectral transmittance, turbidity and fluorescence. The user selects particular tests via a keypad and a display indicates the results of the chosen analysis.
    Type: Grant
    Filed: September 25, 2001
    Date of Patent: December 28, 2004
    Assignee: Tennessee Scientific, Inc.
    Inventors: R. Matthew Mosley, Douglas J. Paul, John N. Pike
  • Instrument and method for testing fluid characteristics
    Publication number: 20030058450
    Abstract: An instrument for testing fluid characteristics has a vial and a housing. The vial defines a chamber for receiving a sample of the fluid and has a cap for sealing the fluid therein. The housing defines a recess for receiving the vial. Multiple light emitting diodes and photovoltaic detectors are arranged on multiple meridional planes within the housing. The meridional planes each intersect approximately at a central axis of the chamber when the vial is placed within the recess. Modulation of the light emitting diodes and tuned processing electronics allow for simultaneous evaluation of sample characteristics such as spectral transmittance, turbidity and fluorescence. The user selects particular tests via a keypad and a display indicates the results of the chosen analysis.
    Type: Application
    Filed: September 25, 2001
    Publication date: March 27, 2003
    Inventors: R. Matthew Mosley, Douglas J. Paul, John N. Pike