Patents by Inventor Christoph Erbacher

Christoph Erbacher 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: 11021736
    Abstract: The present invention pertains to a method for isolating extracellular nucleic acids from a sample, wherein said sample is optionally stabilized, by binding the extracellular nucleic acids to a solid phase which carries anion exchange groups, comprising the following steps: a. binding the extracellular nucleic acids to the solid phase in a binding mixture having a first pH which allows binding the extracellular nucleic acids to the anion exchange groups of the solid phase; wherein the sample makes up at least 85% of the volume of the binding mixture; b. separating the solid phase with the bound extracellular nucleic acids; c. optionally washing the extracellular nucleic acids; d. optionally eluting extracellular nucleic acids from the solid phase. The method has the advantage that large sample volumes can be processed and that extracellular nucleic acids can be isolated rapidly with a high yield. The method is particularly suitable for automatable processes.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: June 1, 2021
    Assignee: Qiagen GmbH
    Inventors: Martin Horlitz, Annette Nocon, Markus Sprenger-Haussels, Peter Grünefeld, Christoph Erbacher
  • Publication number: 20190226007
    Abstract: The present invention pertains to a method for isolating extracellular nucleic acids from a sample, wherein said sample is optionally stabilized, by binding the extracellular nucleic acids to a solid phase which carries anion exchange groups, comprising the following steps: a. binding the extracellular nucleic acids to the solid phase in a binding mixture having a first pH which allows binding the extracellular nucleic acids to the anion exchange groups of the solid phase; wherein the sample makes up at least 85% of the volume of the binding mixture; b. separating the solid phase with the bound extracellular nucleic acids; c. optionally washing the extracellular nucleic acids; d. optionally eluting extracellular nucleic acids from the solid phase. The method has the advantage that large sample volumes can be processed and that extracellular nucleic acids can be isolated rapidly with a high yield. The method is particularly suitable for automatable processes.
    Type: Application
    Filed: November 29, 2018
    Publication date: July 25, 2019
    Inventors: Martin Horlitz, Annette Nocon, Markus Sprenger-Haussels, Peter Grünefeld, Christoph Erbacher
  • Patent number: 10184145
    Abstract: The present invention pertains to a method for isolating extracellular nucleic acids from a sample, wherein said sample is optionally stabilized, by binding the extracellular nucleic acids to a solid phase which carries anion exchange groups, comprising the following steps: binding the extracellular nucleic acids to the solid phase in a binding mixture having a first pH which allows binding the extracellular nucleic acids to the anion exchange groups of the solid phase; wherein the sample makes up at least 85% of the volume of the binding mixture; separating the solid phase with the bound extracellular nucleic acids; optionally washing the extracellular nucleic acids; optionally eluting extracellular nucleic acids from the solid phase. The method has the advantage that large sample volumes can be processed and that extracellular nucleic acids can be isolated rapidly with a high yield. The method is particularly suitable for automatable processes.
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: January 22, 2019
    Assignee: QIAGEN GmbH
    Inventors: Martin Horlitz, Annette Nocon, Markus Sprenger-Haussels, Peter Grünefeld, Christoph Erbacher
  • Patent number: 9574225
    Abstract: The invention relates to the preparation of a biological sample for performing verifications and examinations, wherein the aim of the invention is the creation of a method for preparing a biological sample having an improved PCR sensitivity compared to the reference standard having standard PCR without having to raise the cost thereof.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: February 21, 2017
    Assignee: QIAGEN GMBH
    Inventors: Ralf Himmelreich, Thomas Rothmann, Roland Fabis, Christoph Erbacher
  • Patent number: 9506107
    Abstract: The present invention relates to an improved method for isolating nucleic acids, particularly genomic desoxyribonucleic acid (DNA) from blood.
    Type: Grant
    Filed: July 25, 2006
    Date of Patent: November 29, 2016
    Assignee: QIAGEN GMBH
    Inventors: Christoph Erbacher, Ralf Himmelreich, Ralf Peist, Ingerlise Evans Haaland, Hege Hardersen
  • Patent number: 9102935
    Abstract: The present invention relates to a method for purifying nucleic acids using a nucleic acid-binding phase which is furnished with a deficit of nucleic acid-binding groups A having a pK of 8 to 13, or which has groups A and binding-inhibiting groups N which are neutrally charged during the binding, and preferably during the elution, and the method comprises the following steps: (a) binding the nucleic acids to the nucleic acid-binding phase at a pH which is below the pH of the pK of the nucleic acid-binding groups A (binding pH); (b) eluting the nucleic acids at a pH which is above the binding pH (elution pH). In addition, corresponding kits and also nucleic acid-binding phases which can be used for purifying nucleic acids are disclosed. The technology according to the invention permits the purification of nucleic acids and, in particular, elution, with use of low salt concentrations, and so the purified nucleic acids can be directly processed, for example used in a PCR.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: August 11, 2015
    Assignee: Qiagen GmbH
    Inventors: Christoph Erbacher, Roland Fabis
  • Patent number: 9017557
    Abstract: The present invention concerns new monolithic shaped bodies, a method for their preparation as well as their use especially for the selective purification and separation of biopolymers. A chromatographic separation material is provided with the new monolithic shaped bodies that allows a selective, efficient and reproducible purification and separation of biopolymers.
    Type: Grant
    Filed: July 27, 2005
    Date of Patent: April 28, 2015
    Assignee: Qiagen GmbH
    Inventors: Christoph Erbacher, Christoph Ritt, Markus Kirchmann
  • Publication number: 20140227712
    Abstract: The present invention pertains to a method for isolating extracellular nucleic acids from a sample, wherein said sample is optionally stabilized, by binding the extracellular nucleic acids to a solid phase which carries anion exchange groups, comprising the following steps: binding the extracellular nucleic acids to the solid phase in a binding mixture having a first pH which allows binding the extracellular nucleic acids to the anion exchange groups of the solid phase; wherein the sample makes up at least 85% of the volume of the binding mixture; separating the solid phase with the bound extracellular nucleic acids; optionally washing the extracellular nucleic acids; optionally eluting extracellular nucleic acids from the solid phase. The method has the advantage that large sample volumes can be processed and that extracellular nucleic acids can be isolated rapidly with a high yield. The method is particularly suitable for automatable processes.
    Type: Application
    Filed: September 25, 2012
    Publication date: August 14, 2014
    Inventors: Martin Horlitz, Annette Nocon, Markus Sprenger-Haussels, Peter Grünefeld, Christoph Erbacher
  • Patent number: 8778842
    Abstract: The present invention provides copolymers that facilitate nucleic acid analysis, compositions that comprise such copolymers, and methods for making or using such copolymers.
    Type: Grant
    Filed: February 6, 2006
    Date of Patent: July 15, 2014
    Assignee: QIAGEN GmbH
    Inventors: Ralf Himmelreich, Roland Fabis, Christoph Erbacher, Sabine Werner, Bernd Springer
  • Publication number: 20130231460
    Abstract: The present invention relates to a method for concentrating one or more target compounds in a liquid sample, a device for carrying out this method and a kit for processing a biological sample comprising such a device.
    Type: Application
    Filed: September 7, 2011
    Publication date: September 5, 2013
    Applicant: Qiagen GmbH
    Inventors: Christoph Erbacher, Vera Holländer, Markus Müller, Martin Schlumpberger, Marion Schmidt, Markus Sprenger-Haussels
  • Patent number: 8460941
    Abstract: The present invention is related to a method for isolating a target nucleic acid from a sample comprising said target nucleic acid, comprising the steps of mixing a sample containing said target nucleic acid with a binding solution and a nucleic acid binding matrix, binding at least part of said target nucleic acid to said nucleic acid binding matrix, wherein said nucleic acid binding matrix is treated simultaneously or has been previously treated with at least one compound comprising a metal substance selected from the group consisting of metals of the main groups 13 to 16, semimetals and transition metals for reducing non-target nucleic acid contaminations or wherein said nucleic acid binding matrix is modified with hydrophobic groups. Furthermore, respective kits and reagents are provided with the teaching of the present invention.
    Type: Grant
    Filed: May 7, 2012
    Date of Patent: June 11, 2013
    Assignee: Qiagen GmbH
    Inventors: Christoph Ritt, Christoph Erbacher, Patrick Baumhof
  • Publication number: 20130137586
    Abstract: The present invention relates to the use of an aqueous system for stabilizing cell material-containing biological samples while preserving the cell morphology of the cell material and to a method for stabilizing nucleic acids in cell material-containing biological samples while preserving the cell morphology of the cell material.
    Type: Application
    Filed: June 1, 2011
    Publication date: May 30, 2013
    Applicant: QIAGEN GmbH
    Inventors: Christoph Erbacher, Markus Kirchmann, Patrick Baumhof, Petrina Schick
  • Publication number: 20120283426
    Abstract: The present invention is related to a method for isolating a target nucleic acid from a sample comprising said target nucleic acid, comprising the steps of mixing a sample containing said target nucleic acid with a binding solution and a nucleic acid binding matrix, binding at least part of said target nucleic acid to said nucleic acid binding matrix, wherein said nucleic acid binding matrix is treated simultaneously or has been previously treated with at least one compound comprising a metal substance selected from the group consisting of metals of the main groups 13 to 16, semimetals and transition metals for reducing non-target nucleic acid contaminations or wherein said nucleic acid binding matrix is modified with hydrophobic groups. Furthermore, respective kits and reagents are provided with the teaching of the present invention.
    Type: Application
    Filed: May 7, 2012
    Publication date: November 8, 2012
    Applicant: QIAGEN GMBH
    Inventors: Christoph RITT, Christoph ERBACHER, Patrick BAUMHOF
  • Patent number: 8222030
    Abstract: The present in invention relates to a method for the separation of living cells from a mixture of dead and living cells which optionally can also possibly contain cell fragments.
    Type: Grant
    Filed: August 24, 2006
    Date of Patent: July 17, 2012
    Assignee: Qiagen GmbH
    Inventors: Jörg Dennig, Silvia Magyar, Christoph Erbacher, Ralf Himmelreich, Ralf Peist
  • Patent number: 8206990
    Abstract: The present invention is related to a method for isolating a target nucleic acid from a sample comprising said target nucleic acid, comprising the steps of mixing a sample containing said target nucleic acid with a binding solution and a nucleic acid binding matrix, binding at least part of said target nucleic acid to said nucleic acid binding matrix, wherein said nucleic acid binding matrix is treated simultaneously or has been previously treated with at least one compound comprising a metal substance selected from the group consisting of metals of the main groups 13 to 16, semimetals and transition metals for reducing non-target nucleic acid contaminations or wherein said nucleic acid binding matrix is modified with hydrophobic groups. Furthermore, respective kits and reagents are provided with the teaching of the present invention.
    Type: Grant
    Filed: October 10, 2007
    Date of Patent: June 26, 2012
    Assignee: Qiagen GmbH
    Inventors: Christoph Ritt, Christoph Erbacher, Patrick Baumhof
  • Patent number: 8143229
    Abstract: A method for incorporating a biomolecule into a cell including the steps: i) production of a complex from a biomolecule and a polymer which may be obtained by reaction of an amine monomer having at least two amine groups with an epoxide monomer having at least two epoxide groups and ii) incorporation of the biomolecule into a cell bx bringing the cell into contact with the complex. The invention further relates to the transformed cell obtained by said method, the use of a particular polymer for incorporation of a biomolecule into a cell, a kit for incorporation of a biomolecule into a cell, the use of said kit, a complex made from a biomolecule and a polymer, a therapeutic composition, the use of a complex of a biomolecule and a polymer for therapeutic treatment and a method for treatment of a disease by gene therapy.
    Type: Grant
    Filed: February 21, 2007
    Date of Patent: March 27, 2012
    Assignee: Qiagen GmbH
    Inventors: Christoph Erbacher, Ute Krüger
  • Publication number: 20110319506
    Abstract: The present invention relates to a method for purifying nucleic acids using a nucleic acid-binding phase which is furnished with a deficit of nucleic acid-binding groups A having a pK of 8 to 13, or which has groups A and binding-inhibiting groups N which are neutrally charged during the binding, and preferably during the elution, and the method comprises the following steps: (a) binding the nucleic acids to the nucleic acid-binding phase at a pH which is below the pH of the pK of the nucleic acid-binding groups A (binding pH); (b) eluting the nucleic acids at a pH which is above the binding pH (elution pH). In addition, corresponding kits and also nucleic acid-binding phases which can be used for purifying nucleic acids are disclosed. The technology according to the invention permits the purification of nucleic acids and, in particular, elution, with use of low salt concentrations, and so the purified nucleic acids can be directly processed, for example used in a PCR.
    Type: Application
    Filed: December 23, 2009
    Publication date: December 29, 2011
    Inventors: Christoph Erbacher, Roland Fabis
  • Publication number: 20110318784
    Abstract: The invention relates to the preparation of a biological sample for performing verifications and examinations, wherein the aim of the invention is the creation of a method for preparing a biological sample having an improved PCR sensitivity compared to the reference standard having standard PCR without having to raise the cost thereof.
    Type: Application
    Filed: December 23, 2009
    Publication date: December 29, 2011
    Inventors: Ralf Himmelreich, Thomas Rothmann, Roland Fabis, Christoph Erbacher
  • Publication number: 20110171656
    Abstract: The present invention relates to a method for normalizing the contents of biomolecules in a sample, comprising the following steps: a) preparing a reaction vessel with a vessel surface that is functionalized at least in sections—preferably on the inside of the vessel—in such a way that the surface can reversibly bind biomolecules under high salt conditions, b) executing at least one sample preparation step, c) binding biomolecules from the prepared sample to the vessel surface (“binding and normalizing step”) under high salt conditions, d) optionally washing (“washing step”), and e) executing at least one subsequent reaction. The application also relates to a reaction vessel as is used in the above method.
    Type: Application
    Filed: September 16, 2009
    Publication date: July 14, 2011
    Inventors: Christoph Erbacher, Peter Grünefeld
  • Publication number: 20100099150
    Abstract: The invention relates to a composition comprising (i) an enzyme with nucleic acid polymerase activity, (ii) an inert protein and, (ii) a zwitterionic detergent. The invention also relates to a composition comprising (i) an enzyme with nucleic acid polymerase activity, (ii) an inert protein and, (ii) a zwitterionic detergent. The invention further relates to a method for enzymatic nucleic acid synthesis comprising the steps of, (a) providing in a reaction mixture, a polymerase activity, a nucleic acid template, a zwitterionic detergent, a buffer, a salt, nucleotides and an inert protein and, (b) incubating the reaction mixture at a temperature which enables nucleic acid synthesis.
    Type: Application
    Filed: March 6, 2008
    Publication date: April 22, 2010
    Inventors: Nan Fang, Dirk Löffert, Christoph Erbacher, Lars-Erik Peters