Patents by Inventor Toralf Kaiser

Toralf Kaiser 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).

  • Patent number: 11841314
    Abstract: The invention relates to a method and system for characterizing particles using a flow cytometer comprising detecting radiated light from the particles using two or more detectors positioned to allow for the detection in two or more angular directions and generating a waveform, as a digital representation for the detected radiated light for each of said angulation direction. The waveforms are transformed using one or more basis functions to obtain one or more coefficients characterizing the waveform. The one or more coefficients characterizing the waveform preferably correspond to properties of the particle(s), thereby enabling analysis of physical properties of the particles (such as size, shape, refractive index) or biological properties of the particles (such as cell type, cell cycle state or localization or distribution of molecules within the cell and/or on the cell surface). In preferred embodiments the method and system are used for a label-free sorting of particles, in particular biological cells.
    Type: Grant
    Filed: June 28, 2021
    Date of Patent: December 12, 2023
    Assignees: Deutsches Rheuma-Forschungszentrum Berlin, A.P.E Angewandte Physik & Elektronik GmbH
    Inventors: Toralf Kaiser, Daniel Kage, Claudia Giesecke-Thiel, Konrad von Volkmann
  • Publication number: 20220003660
    Abstract: The invention relates to a method and system for characterizing particles using a flow cytometer comprising detecting radiated light from the particles using two or more detectors positioned to allow for the detection in two or more angular directions and generating a waveform, as a digital representation for the detected radiated light for each of said angulation direction. The waveforms are transformed using one or more basis functions to obtain one or more coefficients characterizing the waveform. The one or more coefficients characterizing the waveform preferably correspond to properties of the particle(s), thereby enabling analysis of physical properties of the particles (such as size, shape, refractive index) or biological properties of the particles (such as cell type, cell cycle state or localization or distribution of molecules within the cell and/or on the cell surface). In preferred embodiments the method and system are used for a label-free sorting of particles, in particular biological cells.
    Type: Application
    Filed: June 28, 2021
    Publication date: January 6, 2022
    Inventors: Toralf Kaiser, Daniel Kage, Claudia Giesecke-Thiel, Konrad von Volkmann
  • Patent number: 10337975
    Abstract: The invention relates to a method and system for characterizing particles using a flow cytometer comprising generating a waveform, as a digital representation of detected radiated light, and transforming said waveform using one or more basis functions and obtaining one or more coefficients characterizing the waveform. The one or more coefficients characterizing the waveform preferably correspond to particular properties of the particle(s), thereby enabling analysis of physical properties of the particles (such as size or shape) or biological properties of the particles, such as cell type, localization and/or distribution of molecules within the cell and/or on the cell surface, structural elements of the cell such as the nucleus or the cytoskeleton, antibody or antibody-fragment binding to the cell or cell morphology. Preferred embodiments of the invention relate to methods and systems in which the waveform is transformed by a wavelet transformation or Fourier transformation.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: July 2, 2019
    Assignees: Deutsches Rheuma-Forschungszentrum Berlin, A⋅P⋅E Angewandte Physik & Elektronik GmbH
    Inventors: Kristen Feher, Toralf Kaiser, Konrad von Volkmann, Sebastian Wolf
  • Patent number: 9958393
    Abstract: The invention relates to a system for acquiring discontinuous emission spectra data, whereby the data is analyzed by a multivariate statistic model or equivalent model, such as principal component analysis and the use of the system for flow cytometry.
    Type: Grant
    Filed: October 12, 2011
    Date of Patent: May 1, 2018
    Assignee: DEUTSCHES RHEUMA-FORSCHUNGSZENTRUM BERLIN
    Inventors: Toralf Kaiser, Jenny Kirsch, Andreas Gruetzkau
  • Publication number: 20170322137
    Abstract: The invention relates to a method and system for characterizing particles using a flow cytometer comprising generating a waveform, as a digital representation of detected radiated light, and transforming said waveform using one or more basis functions and obtaining one or more coefficients characterizing the waveform. The one or more coefficients characterizing the waveform preferably correspond to particular properties of the particle(s), thereby enabling analysis of physical properties of the particles (such as size or shape) or biological properties of the particles, such as cell type, localization and/or distribution of molecules within the cell and/or on the cell surface, structural elements of the cell such as the nucleus or the cytoskeleton, antibody or antibody-fragment binding to the cell or cell morphology. Preferred embodiments of the invention relate to methods and systems in which the waveform is transformed by a wavelet transformation or Fourier transformation.
    Type: Application
    Filed: May 5, 2017
    Publication date: November 9, 2017
    Inventors: Kristen Feher, Toralf Kaiser, Konrad von Volkmann, Sebastian Wolf
  • Patent number: 9498550
    Abstract: A flow cytometer disinfection module is useful for disinfecting a sheath fluid in a flow cytometer. The module includes a flow cell and at least one UV-C and/or UV-B light source. The UV-C and/or UV-B light source is disposed about the cell and irradiates a sheath fluid passing through the cell.
    Type: Grant
    Filed: March 12, 2012
    Date of Patent: November 22, 2016
    Assignees: DEUTSCHES RHEUMA-FORSCHUNGSZENTRUM BERLIN, TECHNISCHE UNIVERSITÄT BERLIN
    Inventors: Michael Kneissl, Toralf Kaiser, Tim Kolbe
  • Publication number: 20140050612
    Abstract: A flow cytometer disinfection module is useful for disinfecting a sheath fluid in a flow cytometer. The module includes a flow cell and at least one UV-C and/or UV-B light source.
    Type: Application
    Filed: March 12, 2012
    Publication date: February 20, 2014
    Applicants: TECHNISCHE UNIVERSITAT BERLIN, DEUTSCHES RHEUMA-FORSCHUNGSZENTRUM BERLIN
    Inventors: Michael Kneissl, Toralf Kaiser, Tim Kolbe
  • Publication number: 20130266959
    Abstract: The invention relates to a system for acquiring discontinuous emission spectra data, whereby the data is analyzed by a multivariate statistic model or equivalent model, such as principal component analysis and the use of the system for flow cytometry.
    Type: Application
    Filed: October 12, 2011
    Publication date: October 10, 2013
    Applicant: DEUTSCHES RHEUMA-FORSCHUNGSZENTRUM BERLIN
    Inventors: Toralf Kaiser, Jenny Kirsch, Andreas Gruetzkau