Patents by Inventor John Joseph Cullen

John Joseph Cullen 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).

  • METHOD FOR ASSAYING FOR LOSS OF AN ORGANISM IN AN AQUEOUS SOLUTION
    Publication number: 20180237822
    Abstract: A method for assaying for loss of viability of a photosynthetic microorganism in aqueous liquid is described. The Nmethod comprises the step of correlating the photorepair index (PRI) for said microorganism in the aqueous liquid to survivorship of said microorganism after exposure to ultraviolet (UV) radiation.
    Type: Application
    Filed: June 27, 2016
    Publication date: August 23, 2018
    Inventors: Hugh Logan MACINTYRE, John Joseph CULLEN, Brian PETRI
  • Method and apparatus for monitoring a condition in chlorophyll containing matter
    Patent number: 7199376
    Abstract: A method of monitoring health in chlorophyll containing matter comprises exposing the matter to a light source to cause chlorophyll to fluoresce and emit a fluorescence signal. Any changes in a parameter indicative of changes in the intensity of the fluorescence signal are detected and compared with a predetermined threshold. A change which exceeds the predetermined threshold is interpreted as a transition of the level of stress in the chlorophyll containing matter. An apparatus for monitoring health in chlorophyll containing matter is also provided and comprises a light source for causing chlorophyll in the matter to fluoresce, a detector for detecting the intensity the fluorescent signal, means for measuring changes in a parameter indicative of changes in the intensity of the fluorescent signal and a detector to detect an increase in the change of the parameter above a predetermined threshold.
    Type: Grant
    Filed: July 16, 2001
    Date of Patent: April 3, 2007
    Assignee: Her Majesty the Queen in Right of Canada as represented by the Minister of Agriculture and Agri-Food Canada
    Inventors: Robert Prange, John Delong, Peter Harrison, Jerry Leyte, Scott Donald McLean, Jeffrey Garrett Edmund Scrutton, John Joseph Cullen
  • Method and apparatus for monitoring a condition in chlorophyll containing matter
    Publication number: 20030146394
    Abstract: A method of monitoring health in chlorophyll containing matter comprises exposing the matter to a light source to cause chlorophyll to fluoresce and emit a fluorescence signal. Any changes in a parameter indicative of changes in the intensity of the fluorescence signal are detected and compared with a predetermined threshold. A change which exceeds the predetermined threshold is interpreted as a transition of the level of stress in the chlorophyll containing matter. An apparatus for monitoring health in chlorophyll containing matter is also provided and comprises a light source for causing chlorophyll in the matter to fluoresce, a detector for detecting the intensity the fluorescent signal, means for measuring changes in a parameter indicative of changes in the intensity of the fluorescent signal and a detector to detect an increase in the change of the parameter above a predetermined threshold.
    Type: Application
    Filed: January 14, 2003
    Publication date: August 7, 2003
    Inventors: Robert Prange, John Delong, Peter Harrison, Jerry Leyte, Scott Donald McLean, Jeffrey Garrett Edmund Scrutton, John Joseph Cullen