Patents by Inventor Stefan Duhr

Stefan Duhr 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).

  • Publication number: 20150137005
    Abstract: The invention relates to arrays with a plurality of capillaries being arranged in a plane and mechanically attached to the array, wherein the distance of adjacent capillaries is approximately 2.25 mm or an integer multiple thereof. At least one free end of each capillary projects from the array in such a way that the free ends of the capillaries may be simultaneously inserted into wells of a microwell plate.
    Type: Application
    Filed: September 12, 2014
    Publication date: May 21, 2015
    Inventors: Philipp Baaske, Stefan Duhr, Stefan Reichl, Hans-Jurgen Bigus
  • Publication number: 20150125897
    Abstract: The present invention relates to a method and an apparatus for a fast thermo-optical characterisation of particles. In particular, the present invention relates to a method and a device to measure the stability of (bio)molecules, the interaction of molecules, in particular biomolecules, with, e.g. further (bio)molecules, particularly modified (bio)molecules, particles, beads, and/or the determination of the length/size (e.g. hydrodynamic radius) ofindividual (bio)molecules, particles, beads and/or the determination of length/size (e.g. hydrodynamic radius).
    Type: Application
    Filed: October 2, 2014
    Publication date: May 7, 2015
    Applicant: Ludwig Maximilians Universität München
    Inventors: Stefan DUHR, Philipp Baaske
  • Patent number: 8941080
    Abstract: The present invention pertains to a device and method to measure thermo-optical, preferably thermophoretic, characteristics of particles in a solution. The method comprises the steps of: (a) providing a sample probe comprising marked particles in a solution; (b) providing a temperature control system for creating a temperature gradient within said sample probe by contact heating, electrical heating and/or cooling; (c) detecting the marked particles at a first time; (d) creating a temperature gradient within the sample probe by means of the temperature control system; (e) detecting the marked particles in the sample probe at a, preferably predetermined, second time and/or at a predetermined location within the temperature gradient, and (f) characterizing the particles based on said two detections.
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: January 27, 2015
    Assignee: Ludwig-Maximilians-Universitat Munchen
    Inventors: Stefan Duhr, Philipp Baaske, Dieter Braun, Christoph Jens Wienken
  • Patent number: 8853650
    Abstract: The present invention relates to a method and an apparatus for a fast thermo-optical characterization of particles. In particular, the present invention relates to a method and a device to measure the stability of (bio)molecules, the interaction of molecules, in particular biomolecules, with, e.g. further (bio)molecules, particularly modified (bio)molecules, particles, beads, and/or the determination of the length/size (e.g. hydrodynamic radius) of individual (bio)molecules, particles, beads and/or the determination of length/size (e.g. hydrodynamic radius).
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: October 7, 2014
    Assignee: Ludwig Maximilians Universitat Munchen
    Inventors: Stefan Duhr, Phillip Baaske
  • Publication number: 20140293731
    Abstract: The invention generally relates to an apparatus and a method for mixing of liquids (50) or of particles with a liquid (50). In a volume of liquid (50), a thermal convection flow is generated at at least one surface of the volume of liquid by irradiating IR radiation (30) into the volume of liquid. Thereby it is possible to avoid a depletion zone at the surface and to more accurately measure interactions of the particles with the surface by means of surface-based measurement methods.
    Type: Application
    Filed: March 27, 2014
    Publication date: October 2, 2014
    Inventors: Philipp BAASKE, Stefan DUHR
  • Patent number: 8741570
    Abstract: The present invention pertains to a method and a device for the determination of thermo-optical properties, particularly the size or size distribution, of fluorescently labeled biomolecules or biomolecule complexes, particularly nucleic acids, in a reaction solution.
    Type: Grant
    Filed: February 6, 2009
    Date of Patent: June 3, 2014
    Assignee: Ludwig-Maximilians-Universitat Munchen
    Inventors: Stefan Duhr, Philipp Baaske
  • Publication number: 20130288232
    Abstract: The present invention relates to a method and an apparatus for a fast thermo-optical characterisation of particles. In particular, the present invention relates to a method and a device to measure the stability of (bio)molecules, the interaction of molecules, in particular biomolecules, with, e.g. further (bio)molecules, particularly modified (bio)molecules, particles, beads, and/or the determination of the length/size (e.g. hydrodynamic radius) of individual (bio)molecules, particles, beads and/or the determination of length/size (e.g. hydrodynamic radius).
    Type: Application
    Filed: April 26, 2013
    Publication date: October 31, 2013
    Inventors: Stefan Duhr, Philipp Baaske
  • Patent number: 8431903
    Abstract: The present invention relates to a method and an apparatus for a fast thermo-optical characterization of particles. In particular, the present invention relates to a method and a device to measure the stability of (bio)molecules, the interaction of molecules, in particular biomolecules, with, e.g. further (bio)molecules, particularly modified (bio)molecules, particles, beads, and/or the determination of the length/size (e.g. hydrodynamic radius) of individual (bio)molecules, particles, beads and/or the determination of length/size (e.g. hydrodynamic radius).
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: April 30, 2013
    Assignee: Ludwig Maximilians Universitat Munich
    Inventors: Stefan Duhr, Philipp Baaske
  • Publication number: 20110084218
    Abstract: The present invention pertains to a device and method to measure thermo-optical, preferably thermophoretic, characteristics of particles in a solution. The method comprises the steps of: (a) providing a sample probe comprising marked particles in a solution; (b) providing a temperature control system for creating a temperature gradient within said sample probe by contact heating, electrical heating and/or cooling; (c) detecting the marked particles at a first time; (d) creating a temperature gradient within the sample probe by means of the temperature control system; (e) detecting the marked particles in the sample probe at a, preferably predetermined, second time and/or at a predetermined location within the temperature gradient, and (f) characterizing the particles based on said two detections.
    Type: Application
    Filed: May 20, 2009
    Publication date: April 14, 2011
    Inventors: Stefan Duhr, Philipp Baaske, Dieter Braun, Christoph Jens Wienken
  • Publication number: 20100330578
    Abstract: The present invention pertains to a method and a device for the determination of thermo-optical properties, particularly the size or size distribution, of fluorescently labeled biomolecules or biomolecule complexes, particularly nucleic acids, in a reaction solution.
    Type: Application
    Filed: February 6, 2009
    Publication date: December 30, 2010
    Inventors: Stefan Duhr, Philipp Baaske
  • Publication number: 20100044586
    Abstract: The present invention relates to a method and an apparatus for a fast thermo-optical characterisation of particles. In particular, the present invention relates to a method and a device to measure the stability of (bio)molecules, the interaction of molecules, in particular biomolecules, with, e.g. further (bio)molecules, particularly modified (bio)molecules, particles, beads, and/or the determination of the length/size (e.g. hydrodynamic radius) of individual (bio)molecules, particles, beads and/or the determination of length/size (e.g. hydrodynamic radius).
    Type: Application
    Filed: November 20, 2007
    Publication date: February 25, 2010
    Applicant: Ludwig Maximilians Universitat Munchen
    Inventors: Stefan Duhr, Philipp Baaske