Patents by Inventor Claudia Fritz

Claudia Fritz 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: 8785120
    Abstract: The invention generally provides a method for the sample preparation for a subsequent preparation, processing or analysis method of a sample containing an at least one species of nucleic acid and/or one species of protein, whereby the method comprises the following steps: A) providing a sample which contains at least one species of a nucleic acid and/or of a protein, B) contacting the sample with a fluid or solid composition to produce a fluid sample preparation, whereby the composition contains at least a nitrogenous compound, which is selected from the group consisting of a) polyamines, b) amino acids, and oligo- and polypeptides, c) nitrogenous heterocyclic compounds, including homo-oder heteropolymeres, which comprise these nitrogenous compounds, d) amines of the type R1R2NR3, whereby R1, R2 and R3 are chosen independently from one another from the group consisting of H, C1-C5-alkyl groups and aryl groups, whereby R1, R2 and R3 are not H simultaneously, e) carbonxylic acid amides, f) inorganic ammonium sa
    Type: Grant
    Filed: August 24, 2010
    Date of Patent: July 22, 2014
    Assignee: Qiagen GmbH
    Inventors: Christian Korfhage, Friederike Wilmer, Dirk Loffert, Ralf Himmelreich, Claudia Fritz, Kathleen Rieske
  • Patent number: 8076069
    Abstract: The invention generally provides a method for the sample preparation for a subsequent preparation, processing or analysis method of a sample containing an at least one species of nucleic acid and/or one species of protein, whereby the method comprises the following steps: A) providing a sample which contains at least one species of a nucleic acid and/or of a protein, B) contacting the sample with a fluid or solid composition to produce a fluid sample preparation, whereby the composition contains at least a nitrogenous compound, which is selected from the group consisting of a) polyamines, b) amino acids, and oligo- and polypeptides, c) nitrogenous heterocyclic compounds, including homo- oder heteropolymers, which comprise these nitrogenous compounds, d) amines of the type R1R2NR3, whereby R1, R2 and R3 are chosen independently from one another from the group consisting of H, C1-C5-alkyl groups and aryl groups, whereby R1, R2 and R3 are not H simultaneously, e) carboxylic acid amides, f) inorganic ammonium sal
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: December 13, 2011
    Assignee: Qiagen GmbH
    Inventors: Christian Korfhage, Friederike Wilmer, Dirk Löffert, Ralf Himmelreich, Claudia Fritz, Kathleen Rieske
  • Publication number: 20100323363
    Abstract: The invention generally provides a method for the sample preparation for a subsequent preparation, processing or analysis method of a sample containing an at least one species of nucleic acid and/or one species of protein, whereby the method comprises the following steps: A) providing a sample which contains at least one species of a nucleic acid and/or of a protein, B) contacting the sample with a fluid or solid composition to produce a fluid sample preparation, whereby the composition contains at least a nitrogenous compound, which is selected from the group consisting of a) polyamines, b) amino acids, and oligo- and polypeptides, c) nitrogenous heterocyclic compounds, including homo- oder heteropolymeres, which comprise these nitrogenous compounds, d) amines of the type R1R2NR3, whereby R1, R2 and R3 are chosen independently from one another from the group consisting of H, C1-C5-alkyl groups and aryl groups, whereby R1, R2 and R3 are not H simultaneously, e) carbonxylic acid amides, f) inorganic ammonium s
    Type: Application
    Filed: August 24, 2010
    Publication date: December 23, 2010
    Applicant: QIAGEN GmbH
    Inventors: Christian KORFHAGE, Friederike Wilmer, Dirk Löffert, Ralf Himmelreich, Claudia Fritz, Kathleen Rieske
  • Patent number: 7838233
    Abstract: The invention generally provides a method for the sample preparation for a subsequent preparation, processing or analysis method of a sample containing an at least one species of nucleic acid and/or one species of protein, whereby the method comprises the following steps: A) providing a sample which contains at least one species of a nucleic acid and/or of a protein, B) contacting the sample with a fluid or solid composition to produce a fluid sample preparation, whereby the composition contains at least a nitrogenous compound, which is selected from the group consisting of a) polyamines, b) amino acids, and oligo- and polypeptides, c) nitrogenous heterocyclic compounds, including homo-older heteropolymeres, which comprise these nitrogenous compounds, d) amines of the type R1R2NR3, whereby R1, R2 and R3 are chosen independently from one another from the group consisting of H, C1-C5-alkyl groups and aryl groups, whereby R1, R2 and R3 are not H simultaneously, e) carboxylic acid amides, f) inorganic ammonium sa
    Type: Grant
    Filed: April 1, 2006
    Date of Patent: November 23, 2010
    Assignee: Qiagen GmbH
    Inventors: Christian Korfhage, Friederike Wilmer, Dirk Löffert, Ralf Himmelreich, Claudia Fritz, Kathleen Rieske
  • Publication number: 20100209912
    Abstract: The invention generally provides a method for the sample preparation for a subsequent preparation, processing or analysis method of a sample containing an at least one species of nucleic acid and/or one species of protein, whereby the method comprises the following steps: A) providing a sample which contains at least one species of a nucleic acid and/or of a protein, B) contacting the sample with a fluid or solid composition to produce a fluid sample preparation, whereby the composition contains at least a nitrogenous compound, which is selected from the group consisting of a) polyamines, b) amino acids, and oligo- and polypeptides, c) nitrogenous heterocyclic compounds, including homo- oder heteropolymers, which comprise these nitrogenous compounds, d) amines of the type R1R2NR3, whereby R1, R2 and R3 are chosen independently from one another from the group consisting of H, C1-C5-alkyl groups and aryl groups, whereby R1, R2 and R3 are not H simultaneously, e) carboxylic acid amides, f) inorganic ammonium sal
    Type: Application
    Filed: June 3, 2009
    Publication date: August 19, 2010
    Applicant: QIAGEN GMBH
    Inventors: Christian KORFHAGE, Friederike WILMER, Dirk LÖFFERT, Ralf HIMMELREICH, Claudia FRITZ, Kathleen RIESKE
  • Publication number: 20080187924
    Abstract: The invention generally provides a method for the sample preparation for a subsequent preparation, processing or analysis method of a sample containing an at least one species of nucleic acid and/or one species of protein, whereby the method comprises the following steps: A) providing a sample which contains at least one species of a nucleic acid and/or of a protein, B) contacting the sample with a fluid or solid composition to produce a fluid sample preparation, whereby the composition contains at least a nitrogenous compound, which is selected from the group consisting of a) polyamines, b) amino acids, and oligo- and polypeptides, c) nitrogenous heterocyclic compounds, including homo-older heteropolymeres, which comprise these nitrogenous compounds, d) amines of the type R1R2NR3, whereby R1, R2 and R3 are chosen independently from one another from the group consisting of H, C1-C5-alkyl groups and aryl groups, whereby R1, R2 and R3 are not H simultaneously, e) carboxylic acid amides, f) inorganic ammonium sa
    Type: Application
    Filed: April 1, 2006
    Publication date: August 7, 2008
    Applicant: Qiagen GmbH
    Inventors: Christian Korfhage, Friederike Wilmer, Dirk Loffert, Ralf Himmelreich, Claudia Fritz
  • Publication number: 20080166703
    Abstract: The invention relates to a rapid method for isolating nucleic acid from a nucleic acid source, wherein the nucleic acid source is lysed in the absence of a chaotropic salt and in the absence of an alcohol. The lysate is subsequently filtered through a porous matrix consisting of a material based on silica or of a silica coated material, which binds the nucleic acid in the absence of a chaotropic salt and in the absence of an alcohol. Finally, the nucleic acid is eluted from the porous matrix by an aqueous buffer solution. Furthermore, this invention relates to a test kit in order to isolate the nucleic acid.
    Type: Application
    Filed: October 20, 2004
    Publication date: July 10, 2008
    Applicant: QIAGEN GmbH
    Inventors: Ralf Himmelreich, Sabine Werner, Claudia Fritz
  • Publication number: 20070295244
    Abstract: The invention provides titanium dioxide pigments for plastics resin compositions which are excellent in dispersibility, light resistance, and weather resistance and little cause surface imperfection. In particular, the invention provides a titanium dioxide pigment suitable for general-purpose plastics resin compositions which can attain excellent dispersion and lacing resistance even when blended in a high concentration; a titanium dioxide pigment suitable for engineering plastics resin compositions which can attain dispersion properties, silver streaking resistance, inhibition of reduction in molecular weight, and thermal discoloration resistance at high levels; a process for the production of the pigments; and resin compositions containing the pigments. A titanium dioxide pigment for plastics resin compositions, characterized in that each titanium dioxide particle has a dense hydrous silica coat covering its surface and an organic compound coat formed on the silica coat not through an interlayer.
    Type: Application
    Filed: June 23, 2005
    Publication date: December 27, 2007
    Inventors: Ralf Himmelreich, Sabine Werner, Claudia Fritz, Hideo Takahashi, Masaki Shimojoh, Toshihiko Akamatsu, Keisuke Iriyama
  • Publication number: 20070264500
    Abstract: The invention relates to polypropylene-based monofilaments having improved properties, especially an improved abrasion resistance, to a process for manufacturing these monofilaments and to their use. The invention relates more particularly to polypropylene-based monofilaments, the polypropylene being obtained by polymerizing propylene in the presence of a metallocene catalyst.
    Type: Application
    Filed: March 22, 2005
    Publication date: November 15, 2007
    Inventor: Claudia Fritz