Patents by Inventor Hendrik Jalink

Hendrik Jalink 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).

  • TITLE OF INVENTION METHOD AND DEVICE FOR DETERMINING PLANT MATERIAL QUALITY USING IMAGES CONTAINING INFORMATION ABOUT THE QUANTUM EFFICIENCY AND THE TIME RESPONSE OF THE PHOTOSYNTHTIC SYSTEM
    Publication number: 20120018356
    Abstract: The present invention relates to a method for determining the quality of plant material by irradiating said plant material with a beam consisting of several consecutive light pulses of electromagnetic radiation comprising one or more such wavelengths, that at least a part of the chlorophyll present is excitated by at least a part of the radiation, and for each light pulse measuring the fluorescence radiation originating from the plant material and associated with the chlorophyll transition with an imaging detector for obtaining the chlorophyll fluorescence images. The invention also relates to calculating characteristic chlorophyll fluorescence images from the chlorophyll fluorescence images that contain information about the quantum efficiency and the time response of the photosynthetic activity of the photosynthetic system of the plant material.
    Type: Application
    Filed: March 3, 2010
    Publication date: January 26, 2012
    Inventors: Hendrik Jalink, Rob Van Der Schoor
  • Method and a device for making images of the quantum efficiency of the photosynthetic system with the purpose of determining the quality of plant material and a method and a device for measuring, classifying and sorting plant material
    Patent number: 7435876
    Abstract: A method for determining the quality of plant material by making chlorophyll fluorescence images of the material by scanning the material with a beam of electromagnetic radiation so that the chlorophyll present is excitated, and measuring the chlorophyll fluorescence with an imaging detector. From the fluorescence images obtained with a fast and a slow scan, the image of the quantum efficiency of the photosynthetic system of the plant material is calculated. A device for measuring the chlorophyll fluorescence images and a method and devices for sorting and classifying plant material are also described.
    Type: Grant
    Filed: October 31, 2003
    Date of Patent: October 14, 2008
    Assignee: Plant Research International B.V.
    Inventors: Hendrik Jalink, Rob Van Der Schoor, Adrianus Henricus Cornelis Maria Schapendonk
  • Method and a device for making images of the quantum efficiency of the photosynthetic system with the purpose of determining the quality of plant material and a method and a device for measuring, classifying and sorting plant material
    Publication number: 20060102851
    Abstract: The present invention relates to a method for determining the quality of plant material by making chlorophyll fluorescence images of said material by scanning the material with a beam of electromagnetic radiation so that the chlorophyll present is excitated, and measuring the chlorophyll fluorescence with an imaging detector. From the fluorescence images obtained with a fast and a slow scan, the image of the quantum efficiency of the photosynthetic system of the plant material is calculated. The invention further relates to a device for measuring the chlorophyll fluorescence images and to a method and devices for sorting and classifying plant material.
    Type: Application
    Filed: October 31, 2003
    Publication date: May 18, 2006
    Applicant: Plant Research International B.V.
    Inventors: Hendrik Jalink, Rob Van Der Schoor, Adrianus Henricus Schapendonk
  • Method for determining the maturity and quality of seeds and an apparatus for sorting seeds
    Patent number: 6080950
    Abstract: The invention is related to a method and an apparatus for sorting seeds for the assessment of the maturity and quality of seeds by measuring the amount of chlorophyll fluorescence. Fluorescence of the chlorophyll molecule is induced by irradiating the seeds with electromagnetic radiation with a suitable wavelength and measuring the chlorophyll fluorescence. Properties of the method are the very high sensitivity, being fully non-destructive and the very high speed.
    Type: Grant
    Filed: January 8, 1999
    Date of Patent: June 27, 2000
    Assignee: Centrum Voor Plantenveredelings
    Inventor: Hendrik Jalink