Patents by Inventor Christoph Ritt
Christoph Ritt 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).
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Patent number: 10738069Abstract: 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: GrantFiled: October 3, 2017Date of Patent: August 11, 2020Assignee: QIAGEN GmbHInventors: Christoph Ritt, Martin Horlitz, Markus Sprenger-Haussels
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Publication number: 20180244707Abstract: 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: ApplicationFiled: October 3, 2017Publication date: August 30, 2018Inventors: Christoph Ritt, Martin Horlitz, Markus Sprenger-Haussels
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Patent number: 9809612Abstract: 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: GrantFiled: May 12, 2009Date of Patent: November 7, 2017Assignee: QIAGEN GmbHInventors: Christoph Ritt, Martin Horlitz, Markus Sprenger-Haussels
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Patent number: 9790250Abstract: 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: GrantFiled: May 12, 2009Date of Patent: October 17, 2017Assignee: QIAGEN GmbHInventors: Christoph Ritt, Martin Horlitz, Markus Sprenger-Haussels
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Patent number: 9017557Abstract: 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: GrantFiled: July 27, 2005Date of Patent: April 28, 2015Assignee: Qiagen GmbHInventors: Christoph Erbacher, Christoph Ritt, Markus Kirchmann
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Patent number: 8460941Abstract: 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: GrantFiled: May 7, 2012Date of Patent: June 11, 2013Assignee: Qiagen GmbHInventors: Christoph Ritt, Christoph Erbacher, Patrick Baumhof
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Publication number: 20120283426Abstract: 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: ApplicationFiled: May 7, 2012Publication date: November 8, 2012Applicant: QIAGEN GMBHInventors: Christoph RITT, Christoph ERBACHER, Patrick BAUMHOF
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Patent number: 8206990Abstract: 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: GrantFiled: October 10, 2007Date of Patent: June 26, 2012Assignee: Qiagen GmbHInventors: Christoph Ritt, Christoph Erbacher, Patrick Baumhof
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Patent number: 8202427Abstract: Porous, ferro- or ferrimagnetic, glass particles are described that selectively bind molecules of interest, especially nucleic acid molecules; under appropriate conditions. Methods of preparing the porous, ferro- or ferrimagnetic, glass particles and their use for identifying or separating molecules of interest are also described. Kits comprising the porous, ferro- or ferrimagnetic, glass particles are also provided.Type: GrantFiled: February 24, 2011Date of Patent: June 19, 2012Assignee: Qiagen GmbHInventors: Philippe Sauer, Bernd Springer, Thomas Manz, Christoph Ritt, Roland Fabis
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Publication number: 20110186524Abstract: Porous, ferro- or ferrimagnetic, glass particles are described that selectively bind molecules of interest, especially nucleic acid molecules; under appropriate conditions. Methods of preparing the porous, ferro- or ferrimagnetic, glass particles and their use for identifying or separating molecules of interest are also described. Kits comprising the porous, ferro- or ferrimagnetic, glass particles are also provided.Type: ApplicationFiled: February 24, 2011Publication date: August 4, 2011Inventors: Philippe Sauer, Bernd Springer, Thomas Manz, Christoph Ritt, Roland Fabis
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Patent number: 7977109Abstract: The present invention relates to a method for enriching nucleic acids with a length of not more than 300 nucleotides. The invention also relates to a kit for enriching nucleic acids with a length of not more than 300 nucleotides, to the use of such a kit, to the use of an anion exchange matrix and to a method for treating a disease.Type: GrantFiled: December 8, 2006Date of Patent: July 12, 2011Assignee: Qiagen GmbHInventors: Christoph Ritt, Ralf Himmelreich, Martin Weber
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Publication number: 20110160446Abstract: 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 ?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: ApplicationFiled: May 12, 2009Publication date: June 30, 2011Applicant: Qiagen GmbHInventors: Christoph Ritt, Martin Horlitz, Markus Sprenger-Haussels
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Publication number: 20110130558Abstract: 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.Type: ApplicationFiled: May 12, 2009Publication date: June 2, 2011Applicant: Qiagen GmbHInventors: Christoph Ritt, Martin Horlitz, Markus Sprenger-Haussels
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Patent number: 7922917Abstract: Porous, ferro- or ferrimagnetic, glass particles are described that selectively bind molecules of interest, especially nucleic acid molecules, under appropriate conditions. Methods of preparing the porous, ferro- or ferrimagnetic, glass particles and their use for identifying or separating molecules of interest are also described. Kits comprising the porous, ferro- or ferrimagnetic, glass particles are also provided.Type: GrantFiled: December 7, 2006Date of Patent: April 12, 2011Assignee: QIAGEN GmbHInventors: Philippe Sauer, Bernd Springer, Thomas Manz, Christoph Ritt, Roland Fabis
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Publication number: 20100056769Abstract: 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: ApplicationFiled: October 10, 2007Publication date: March 4, 2010Applicant: QIAGEN GMBHInventors: Christoph Ritt, Christoph Erbacher, Patrick Baumhof
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Publication number: 20090081802Abstract: The present invention relates to a method for enriching nucleic acids with a length of not more than 300 nucleotides The invention also relates to a kit for enriching nucleic acids with a length of not more than 300 nucleotides, to the use of such a kit, to the use of an anion exchange matrix and to a method for treating a disease.Type: ApplicationFiled: December 8, 2006Publication date: March 26, 2009Applicant: QIAGEN GmbHInventors: Christoph Ritt, Ralf Himmelreich, Martin Weber
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Publication number: 20090062522Abstract: 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: ApplicationFiled: July 27, 2005Publication date: March 5, 2009Inventors: Christoph Erbacher, Christoph Ritt, Markus Kirchmann
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Publication number: 20070080316Abstract: Porous, ferro- or ferrimagnetic, glass particles are described that selectively bind molecules of interest, especially nucleic acid molecules, under appropriate conditions. Methods of preparing the porous, ferro- or ferrimagnetic, glass particles and their use for identifying or separating molecules of interest are also described. Kits comprising the porous, ferro- or ferrimagnetic, glass particles are also provided.Type: ApplicationFiled: December 7, 2006Publication date: April 12, 2007Inventors: Philippe Sauer, Bernd Springer, Thomas Manz, Christoph Ritt, Roland Fabis
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Patent number: 7183002Abstract: Porous, ferro- or ferrimagnetic, glass particles are described that selectively bind molecules of interest, especially nucleic acid molecules, under appropriate conditions. Methods of preparing the porous, ferro- or ferrimagnetic, glass particles and their use of identifying or separating molecules of interest are also described. Kits comprising the porous, ferro- or ferrimagnetic, glass particles are also provided.Type: GrantFiled: March 22, 2001Date of Patent: February 27, 2007Assignee: Qiagen, GmbHInventors: Philippe Sauer, Bernd Springer, Thomas Manz, Christoph Ritt, Roland Fabis
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Publication number: 20030148101Abstract: Porous, ferro- or ferrimagnetic, glass particles are described that selectively bind molecules of interest, especially nucleic acid molecules, under appropriate conditions. Methods of preparing the porous, ferro- or ferrimagnetic, glass particles and their use of identifying or separating molecules of interest are also described. Kits comprising the porous, ferro- or ferrimagnetic, glass particles are also provided.Type: ApplicationFiled: January 25, 2003Publication date: August 7, 2003Inventors: Philippe Sauer, Bernd Springer, Thomas Manz, Christoph Ritt, Roland Fabis