Patents by Inventor Bernhard HOFKO

Bernhard HOFKO 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 and device for determining a material property of a bitumen material
    Patent number: 10527547
    Abstract: The invention relates to a method and to a device for determining a material property, in particular the aging state or the aging resistance, of a bitumen material, comprising the steps: applying a substantially monochromatic first excitation radiation of a first excitation wavelength to the bitumen material; measuring the intensity of a first fluorescence radiation, excited by the first excitation radiation, at a measurement wavelength; applying a substantially monochromatic second excitation radiation of a first excitation wavelength to the bitumen material; measuring the intensity of a second fluorescence radiation, excited by the second excitation radiation, at the measurement wavelength; determining a first key figure for the material property of the bitumen material from the ratio between the intensity of the second fluorescence radiation to the intensity of the first fluorescence radiation.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: January 7, 2020
    Assignee: TECHNISCHE UNIVERSITÄT WIEN
    Inventors: Bernhard Hofko, Markus Hospodka, Josef Fuessl, Lukas Eberhardsteiner, Hinrich Grothe, Florian Handle, Daniel Grossegger, Ronald Blab
  • METHOD AND DEVICE FOR DETERMINING A MATERIAL PROPERTY OF A BITUMEN MATERIAL
    Publication number: 20180188174
    Abstract: The invention relates to a method and to a device for determining a material property, in particular the aging state or the aging resistance, of a bitumen material, comprising the steps: applying a substantially monochromatic first excitation radiation of a first excitation wavelength to the bitumen material; measuring the intensity of a first fluorescence radiation, excited by the first excitation radiation, at a measurement wavelength; applying a substantially monochromatic second excitation radiation of a first excitation wavelength to the bitumen material; measuring the intensity of a second fluorescence radiation, excited by the second excitation radiation, at the measurement wavelength; determining a first key figure for the material property of the bitumen material from the ratio between the intensity of the second fluorescence radiation to the intensity of the first fluorescence radiation.
    Type: Application
    Filed: June 22, 2016
    Publication date: July 5, 2018
    Inventors: Bernhard HOFKO, Markus HOSPODKA, Josef FUESSL, Lukas EBERHARDSTEINER, Hinrich GROTHE, Florian HANDLE, Daniel GROSSEGGER, Ronald BLAB