Patents by Inventor John H. Morrow

John H. Morrow 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).

  • Detecting substances in drinking water reservoirs
    Patent number: 7119891
    Abstract: The optical properties of water impounded in reservoirs such as large tanks with closed covers and in uncovered reservoirs are monitored to detect harmful substances. The system and method comprises illuminating the water with an artificial light source within the enclosure for monitoring of the reservoir. Radiance and irradiance fluxes are measured by one or more multiband radiometers. Changes in radiance and irradiance are used to calculate spectral attenuation coefficients of the water. Fluorescence spectra are measured. A computer look-up table of known absorption and emission spectra is compared to the spectral attenuation to determine if a substance has been detected.
    Type: Grant
    Filed: May 21, 2004
    Date of Patent: October 10, 2006
    Inventors: Brian N. White, Charles Rockwell Booth, John H. Morrow
  • Detecting substances in drinking water reservoirs
    Publication number: 20040233447
    Abstract: The optical properties of water impounded in reservoirs such as large tanks with closed covers and in uncovered reservoirs are monitored to detect harmful substances. The system and method comprises illuminating the water with an artificial light source within the enclosure for monitoring of the reservoir. Radiance and irradiance fluxes are measured by one or more multiband radiometers. Changes in radiance and irradiance are used to calculate spectral attenuation coefficients of the water. Fluorescence spectra are measured. A computer look-up table of known absorption and emission spectra is compared to the spectral attenuation to determine if a substance has been detected.
    Type: Application
    Filed: May 21, 2004
    Publication date: November 25, 2004
    Inventors: Brian N. White, Charles Rockwell Booth, John H. Morrow
  • Remote electro-optical sensor system for water quality monitoring
    Patent number: 5905570
    Abstract: An improved water quality monitoring system and method. The system utilizes reflectance radiometers to provide multiple wavelength measurement of downwelling irradiance and/or upwelling radiance. The method calculates attenuation coefficients from the downwelling irradiance or upwelling radiance to derive chlorophyll concentration in the water.
    Type: Grant
    Filed: September 18, 1997
    Date of Patent: May 18, 1999
    Assignee: Department of Water and Power City of Los Angeles
    Inventors: Brian N. White, John H. Morrow