Patents by Inventor Eiko THIESSEN

Eiko THIESSEN 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).

  • Determination of a fungal infection of a plant by chlorophyll fluorescence induced by different excitation wavelengths
    Patent number: 9921162
    Abstract: The present invention relates to a method for determining a fungal infection of a plant—The method comprises: emitting excitation radiation by one or more radiation sources to the plant, said radiation comprising first excitation wavelengths being within the absorption band of a compound whose content in the plant is affected by a fungal infection, in particular a phenolic compound, and second excitation wavelengths being outside the absorption band of said compound, thereby inducing chlorophyll fluorescence; detecting chlorophyll fluorescence radiation from the plant; and obtaining a value being indicative for the fungal infection of the plant, said value is dependent from the detected chlorophyll fluorescence radiation induced by excitation radiation of the first excitation wavelengths and the detected chlorophyll fluorescence radiation induced by excitation radiation of the second excitation wavelengths.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: March 20, 2018
    Inventors: Ylva Tischler, Eberhard Hartung, Eiko Thiessen
  • Determination of a Fungal Infection of a Plant by Chlorophyll Fluorescence Induced by Different Excitation Wavelengths
    Publication number: 20160349180
    Abstract: The present invention relates to a method for determining a fungal infection of a plant—The method comprises: emitting excitation radiation by one or more radiation sources to the plant, said radiation comprising first excitation wavelengths being within the absorption band of a compound whose content in the plant is affected by a fungal infection, in particular a phenolic compound, and second excitation wavelengths being outside the absorption band of said compound, thereby inducing chlorophyll fluorescence; detecting chlorophyll fluorescence radiation from the plant; and obtaining a value being indicative for the fungal infection of the plant, said value is dependent from the detected chlorophyll fluorescence radiation induced by excitation radiation of the first excitation wavelengths and the detected chlorophyll fluorescence radiation induced by excitation radiation of the second excitation wavelengths.
    Type: Application
    Filed: December 17, 2014
    Publication date: December 1, 2016
    Inventors: Ylva TISCHLER, Eberhard HARTUNG, Eiko THIESSEN