Patents by Inventor Martin Horlitz

Martin Horlitz 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: 20220017944
    Abstract: The present invention provides methods, compositions and devices for stabilizing the extracellular nucleic acid population in a cell-containing biological sample using an apoptosis inhibitor, preferably a caspase inhibitor, a hypertonic agent and/or a compound according to formula 1 as defined in the claims.
    Type: Application
    Filed: April 29, 2021
    Publication date: January 20, 2022
    Inventors: Martin Horlitz, Annabelle Schubert, Markus Sprenger-Haussels
  • 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
  • Patent number: 11021733
    Abstract: The present invention provides methods, compositions and devices for stabilizing the extracellular nucleic acid population in a cell-containing biological sample using an apoptosis inhibitor, preferably a caspase inhibitor, a hypertonic agent and/or a compound according to formula 1 as defined in the claims.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: June 1, 2021
    Assignee: Qiagen GmbH
    Inventors: Martin Horlitz, Annabelle Schubert, Markus Sprenger-Haussels
  • Publication number: 20200291385
    Abstract: The present invention pertains to methods, uses, compositions and kits for treating RNA at conditions comprising a temperature of at least 70° C. and a pH of at least 8, preferably a pH of at least 9. It also pertains to methods, uses and compositions for stabilizing RNA at conditions comprising a temperature of at least 70° C. and a pH of at least 8, preferably a pH of at least 9. It based on the finding that RNA can be stabilized in the presence of ammonium sulfate. In particular, the present invention provides a method of processing RNA, comprising treating the RNA at conditions comprising a temperature of at least 70° C. and a pH of at least 8, preferably a pH of at least 9, in the presence of ammonium sulfate at a concentration of 10 mM or less.
    Type: Application
    Filed: March 16, 2017
    Publication date: September 17, 2020
    Inventors: Martin Horlitz, Uwe Oelmüller
  • Patent number: 10738069
    Abstract: The invention relates to a method and kits for isolating and/or purifying nucleic acids, in particular, short-chain nucleic acids, from a nucleic acid containing starting material, characterised by the following method steps: (a) bonding the nucleic acids to a nucleic acid bonding support material, wherein the starting material is brought into contact with the nucleic acid bonding support material in the presence of at least one chaotropic compound and preferably isopropanol, wherein the isopropanol is present in a concentration of ?15% (v/v) and ?35% (v/v), (b) optional elution of the bonded nucleic acids from the nucleic acid bonding support material. Said method is particularly suitable for the purification of foetal DNA from maternal blood.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: August 11, 2020
    Assignee: QIAGEN GmbH
    Inventors: Christoph Ritt, Martin Horlitz, Markus Sprenger-Haussels
  • Patent number: 10724074
    Abstract: The present invention provides methods, compositions and devices for stabilizing the extracellular nucleic acid population in a cell-containing biological sample and for stabilizing the transcriptome of contained cells.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: July 28, 2020
    Assignee: Qiagen GmbH
    Inventors: Martin Horlitz, Annabelle Schubert, Markus Sprenger-Haussels, Kalle Günther, Ralf Wyrich, Uwe Oelmüller
  • Patent number: 10676780
    Abstract: The present invention provides methods, compositions and devices for stabilizing the extracellular nucleic acid population in a cell-containing biological sample using an apoptosis inhibitor, preferably a caspase inhibitor, a hypertonic agent and/or a compound according to formula (1) as defined in the claims.
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: June 9, 2020
    Assignee: QIAGEN GMbH
    Inventors: Martin Horlitz, Annabelle Schubert, Markus Sprenger-Haussels
  • Publication number: 20200120923
    Abstract: The present invention provides methods, compositions and devices for stabilizing the extracellular nucleic acid population in a cell-containing biological sample and for stabilizing the transcriptome of contained cells.
    Type: Application
    Filed: January 6, 2020
    Publication date: April 23, 2020
    Inventors: Martin Horlitz, Annabelle Schubert, Markus Sprenger-Haussels, Kalle Günther, Ralf Wyrich, Uwe Oelmüller
  • Publication number: 20190309343
    Abstract: The present invention provides methods, compositions and devices for stabilizing the extracellular nucleic acid population in a cell-containing biological sample using an apoptosis inhibitor, preferably a caspase inhibitor, a hypertonic agent and/or a compound according to formula 1 as defined in the claims.
    Type: Application
    Filed: November 28, 2018
    Publication date: October 10, 2019
    Inventors: Martin Horlitz, Annabelle Schubert, Markus Sprenger-Haussels
  • 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: 10233508
    Abstract: The present disclosure provides methods, compositions and devices for isolating virus particles and/or viral nucleic acids from body samples that were stabilized using a stabilizing composition comprising a formaldehyde releaser agent.
    Type: Grant
    Filed: August 21, 2013
    Date of Patent: March 19, 2019
    Assignee: QIAGEN GmbH
    Inventors: Martin Horlitz, Markus Sprenger-Haussels, Annabelle Schubert, Uwe Oelmüller
  • 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
  • Publication number: 20180244707
    Abstract: The invention relates to a method and kits for isolating and/or purifying nucleic acids, in particular, short-chain nucleic acids, from a nucleic acid containing starting material, characterised by the following method steps: (a) bonding the nucleic acids to a nucleic acid bonding support material, wherein the starting material is brought into contact with the nucleic acid bonding support material in the presence of at least one chaotropic compound and preferably isopropanol, wherein the isopropanol is present in a concentration of ?15% (v/v) and ?35% (v/v), (b) optional elution of the bonded nucleic acids from the nucleic acid bonding support material. Said method is particularly suitable for the purification of foetal DNA from maternal blood.
    Type: Application
    Filed: October 3, 2017
    Publication date: August 30, 2018
    Inventors: Christoph Ritt, Martin Horlitz, Markus Sprenger-Haussels
  • Patent number: 9809612
    Abstract: The invention relates to a method and kits for isolating and/or purifying nucleic acids, in particular, short-chain nucleic acids, from a nucleic acid containing starting material, characterized by the following method steps: (a) bonding the nucleic acids to a nucleic acid bonding support material, wherein the starting material is brought into contact with the nucleic acid bonding support material in the presence of at least one chaotropic compound and preferably isopropanol, wherein the isopropanol is present in a concentration of ?15% (v/v) and ?35% (v/v), (b) optional elution of the bonded nucleic acids from the nucleic acid bonding support material. Said method is particularly suitable for the purification of foetal DNA from maternal blood.
    Type: Grant
    Filed: May 12, 2009
    Date of Patent: November 7, 2017
    Assignee: QIAGEN GmbH
    Inventors: Christoph Ritt, Martin Horlitz, Markus Sprenger-Haussels
  • Patent number: 9790250
    Abstract: The invention relates to a method and kits for isolating and/or purifying nucleic acids, in particular, short-chain nucleic acids, from a nucleic acid containing starting material, characterized by the following method steps: (a) bonding the nucleic acids to a nucleic acid bonding support material, wherein the starting material is brought into contact with the nucleic acid bonding support material in the presence of at least one chaotropic compound and preferably isopropanol, wherein the isopropanol is present in a concentration of ?25% (v/v) and ?35% (v/v), (b) optional elution of the bonded nucleic acids from the nucleic acid bonding support material. Said method is particularly suitable for the purification of foetal DNA from maternal blood.
    Type: Grant
    Filed: May 12, 2009
    Date of Patent: October 17, 2017
    Assignee: QIAGEN GmbH
    Inventors: Christoph Ritt, Martin Horlitz, Markus Sprenger-Haussels
  • Publication number: 20150275268
    Abstract: The present invention provides methods, compositions and devices for stabilizing the extracellular nucleic acid population in a cell-containing biological sample and for stabilizing the transcriptome of contained cells.
    Type: Application
    Filed: September 25, 2013
    Publication date: October 1, 2015
    Applicant: QIAGEN GmbH
    Inventors: Martin Horlitz, Annabelle Schubert, Markus Sprenger-Haussels, Kalle Günther, Ralf Wyrich, Uwe Oelmüller
  • Publication number: 20150240320
    Abstract: The present disclosure provides methods, compositions and devices for isolating virus particles and/or viral nucleic acids from body samples that were stabilized using a stabilizing composition comprising a formaldehyde releaser agent.
    Type: Application
    Filed: August 21, 2013
    Publication date: August 27, 2015
    Inventors: Martin Horlitz, Markus Sprenger-Haussels, Annabelle Schubert, Uwe Oelmüller
  • Patent number: 8980552
    Abstract: The invention describes a method of and kits for isolating and/or purifying nucleic acids, more specifically short-chain nucleic acids such as miRNA, from a nucleic acid-containing starting material, characterized by the following method steps of: (a) binding the nucleic acids to a nucleic acid-binding support material by contacting the starting material with said nucleic acid-binding support material in the presence of at least one chaotropic compound, at least two different detergents and at least one branched and/or unbranched alcohol, preferably isopropanol, with the concentration of said alcohol being 40% (v/v); (b) optionally eluting the bound nucleic acids from the nucleic acid-binding support material. The method of the invention is particularly suitable for purifying circulating, extracellular miRNA from blood.
    Type: Grant
    Filed: June 21, 2010
    Date of Patent: March 17, 2015
    Assignee: QIAGEN GmbH
    Inventors: Martin Horlitz, Markus Sprenger-Haussels
  • 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
  • Publication number: 20140227687
    Abstract: The present invention provides methods, compositions and devices for stabilizing the extracellular nucleic acid population in a cell-containing biological sample using an apoptosis inhibitor, preferably a caspase inhibitor, a hypertonic agent and/or a compound according to formula (1) as defined in the claims.
    Type: Application
    Filed: September 25, 2012
    Publication date: August 14, 2014
    Inventors: Martin Horlitz, Anabelle Schubert, Markus Sprenger-Haussels