Patents by Inventor Waltraud Ankenbauer

Waltraud Ankenbauer 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: 20210015092
    Abstract: The present disclosure is directed to the stabilization of nucleated cells in a whole blood sample ex-vivo, effected by an additive being a liquid composition for stabilizing an analyte in intact nucleated cells of a whole-blood sample ex-vivo, the composition being an aqueous solution, the solution comprising an anticoagulant, a phosphate salt, a cell-metabolizable sugar, adenine, and an antioxidant, wherein the antioxidant comprises a mitochondria-targeted antioxidant, preferably a mitochondria-targeted antioxidant selected from the group consisting of SkQ1, MitoQ, SS-31, and a mixture thereof. In a specific embodiment, the liquid composition further comprises a protease inhibitor. Further provided is advantageous use of the composition for stabilizing an analyte selected from DNA, RNA and protein in intact nucleated cells of the whole-blood sample ex-vivo, as well as kits including the composition for practicing said use.
    Type: Application
    Filed: October 2, 2020
    Publication date: January 21, 2021
    Inventors: Waltraud ANKENBAUER, Ulrike DIETRICH-VEENSTRA, Renate KOLB, Yvonne MAERZ, Stephanie WESSNER
  • Publication number: 20200141929
    Abstract: The present disclosure relates to use of a reagent for the lysis of erythrocytes, a method of lysing erythrocytes and a kit comprising the reagent.
    Type: Application
    Filed: December 20, 2019
    Publication date: May 7, 2020
    Applicant: Roche Diagnostics Operations, Inc.
    Inventors: Waltraud Ankenbauer, Thomas Froehlich, Stefanie Froehner
  • Publication number: 20160324144
    Abstract: The present disclosure is directed to the stabilization of nucleated cells in a whole blood sample ex-vivo, effected by an additive being a liquid composition for stabilizing an analyte in intact nucleated cells of a whole-blood sample ex-vivo, the composition being an aqueous solution, the solution comprising an anticoagulant, a phosphate salt, a cell-metabolizable sugar, adenine, and an antioxidant, wherein the antioxidant comprises a mitochondria-targeted antioxidant, preferably a mitochondria-targeted antioxidant selected from the group consisting of SkQ1, MitoQ, SS-31, and a mixture thereof. In a specific embodiment, the liquid composition further comprises a protease inhibitor. Further provided is advantageous use of the composition for stabilizing an analyte selected from DNA, RNA and protein in intact nucleated cells of the whole-blood sample ex-vivo, as well as kits including the composition for practicing said use.
    Type: Application
    Filed: July 28, 2016
    Publication date: November 10, 2016
    Inventors: Waltraud Ankenbauer, Ulrike Dietrich-Veenstra, Renate Kolb, Yvonne Maerz, Stephanie Wessner
  • Publication number: 20160252498
    Abstract: The present disclosure relates to use of a reagent for the lysis of erythrocytes, a method of lysing erythrocytes and a kit comprising the reagent.
    Type: Application
    Filed: May 4, 2016
    Publication date: September 1, 2016
    Inventors: Waltraud Ankenbauer, Thomas Froehlich, Stefanie Froehner
  • Patent number: 8674080
    Abstract: The present invention provides kits and methods for composition ratio control based on dyes that are designed to enable energy transfer between each other. In more detail, with the method of the present invention it is possible to verify the mixing ratio of a first component comprising a first dye with a second component comprising a second dye.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: March 18, 2014
    Assignee: Roche Molecular Systems, Inc.
    Inventors: Dieter Heindl, Waltraud Ankenbauer, Hans-Peter Josel, Christian Weilke
  • Patent number: 8592184
    Abstract: The present invention is directed to a composition comprising a DNA Polymerase which is preferably thermostable, Deoxynucleotides, at least one primer oligonucleotide or a pair of amplification primers, and randomized 5-8 mer oligonucleotide, characterized in that said oligonucleotide comprises a modification with an organic hydrophobic moiety Such a composition is specifically useful for performing hot start PCR.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: November 26, 2013
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Dieter Heindl, Waltraud Ankenbauer, Frank Laue
  • Publication number: 20130109060
    Abstract: The present invention is directed to a composition comprising a DNA Polymerase which is preferably thermostable, Deoxynucleotides, at least one primer oligonucleotide or a pair of amplification primers, and randomized 5-8 mer oligonucleotide, characterized in that said oligonucleotide comprises a modification with an organic hydrophobic moiety Such a composition is specifically useful for performing hot start PCR.
    Type: Application
    Filed: December 12, 2012
    Publication date: May 2, 2013
    Inventors: Dieter Heindl, Waltraud Ankenbauer, Frank Laue
  • Patent number: 8119353
    Abstract: The present invention is directed to a method for performing a one-step RT-PCR for amplifying a target RNA comprising the steps (i) providing a sample which is supposed to contain said target RNA (ii) adding a reaction mixture comprising all reagents necessary to reverse transcribe said target RNA into cDNA and amplify at least a portion of said cDNA (iii) incubating said sample for a time interval of 0 seconds to 40 seconds at a temperature between 20° C. and 65° C., and (iv) subjecting said sample to multiple cycles of a thermocycling protocol wherein the temperature of said sample is varied between at least a first temperature between 37° C. and 72° C. and a second temperature between 85° C. and 100° C.
    Type: Grant
    Filed: April 3, 2008
    Date of Patent: February 21, 2012
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Waltraud Ankenbauer, Ursula Grepl, Rita Haerteis
  • Patent number: 8026058
    Abstract: The present invention is directed to a synthetic peptide having a length of not more than 30 amino acids comprising a divalent cation binding site. Such a peptide according to the present invention is part of a composition for nucleic acid amplification and provides for a so-called hot start effect.
    Type: Grant
    Filed: August 27, 2008
    Date of Patent: September 27, 2011
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Waltraud Ankenbauer, Dieter Heindl, Frank Laue
  • Patent number: 8008054
    Abstract: A purified thermostable enzyme is derived form the thermophilic archaebacterium Thermococcus gorgonarius. The enzyme can be native or recombinant, retains approximately 90% of its activity after incubation for two hours at 95° C. in the presence of stabilizing agents and possesses 3?-5? proofreading exonuclease activity. Thermostable DNA polymerases are useful in many recombinant DNA techniques, especially nucleic acid amplification by the polymerase chain reaction (PCR).
    Type: Grant
    Filed: June 3, 2010
    Date of Patent: August 30, 2011
    Assignee: Roche Molecular Systems, Inc.
    Inventors: Waltraud Ankenbauer, Vitaly Svetlichny, Elizaveta Bonch-Osmolovskaya, Christine Ebenbichler, Bernhard Angerer, Gudrun Schmitz-Agheguian, Frank Laue
  • Patent number: 7972830
    Abstract: It was found that a fragment of native Thermus aquaticus DNA polymerase (TaqWT) lacking 288 N-terminal amino acids (Taq?288) possesses an increased thermostability over TaqWT, Taq?279, and Taq?289. The present invention therefore provides Taq?288, recombinant expression vectors encoding the same or derivatives thereof, as well as purification protocols for Taq?288. The invention also encompasses kits containing Taq?288 as well as the use of Taq?288 and kits containing Taq?288. In addition, the invention encompasses methods for the sequencing a nucleic acid template and methods for amplifying a target nucleic acid.
    Type: Grant
    Filed: August 12, 2004
    Date of Patent: July 5, 2011
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Thomas Meier, Waltraud Ankenbauer, Annette Deufel, Dieter Heindl, Gisela Betzl, Rainer Schmuck, Bernd Schneidinger, Jessica Strey
  • Publication number: 20110151444
    Abstract: Described is a method for the detection of a RNA molecule, the method involving the steps of providing a sample containing the RNA molecule; hybridizing to the RNA molecule a first polynucleotide; extending the first polynucleotide to generate a first strand cDNA; hybridizing a second polynucleotide to the first strand cDNA; extending the first strand cDNA to generate an extension reaction product; amplifying the extension reaction product by means of polymerase chain reaction; and detecting the amplification product by means of real-time fluorescence readout. Also described is a kit containing a first and a second polynucleotide as defined in the present invention, a set of dNTPs, a reverse transcriptase enzyme, and a detection moiety.
    Type: Application
    Filed: December 15, 2010
    Publication date: June 23, 2011
    Inventors: Andreas Albers, Waltraud Ankenbauer, Frank Bergmann, Stefanie Froehner, Dieter Heindl
  • Patent number: 7910720
    Abstract: The present invention is directed to a novel chemical compound comprising the structure [Xx-(CH2)m-phosphate-Yy]n, characterized in that 3?m?6, 30?n?60, each x and y is independently from each other 0 or 1, each X and Y is independently from each other any photometrically measurable entity; provided that the terminal X can also be an —OH group or a phosphate group, and further provided that the terminal Y can also be an —OH group. Such a compound can be used as a suitable hot start additive for PCR based amplification of nucleic acids.
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: March 22, 2011
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Waltraud Ankenbauer, Dieter Heindl, Frank Laue, Eva Walter, Renate Kolb
  • Publication number: 20110020898
    Abstract: A purified thermostable enzyme is derived form the thermophilic archaebacterium Thermococcus gorgonarius. The enzyme can be native or recombinant, retains approximately 90% of its activity after incubation for two hours at 95° C. in the presence of stabilizing agents and possesses 3?-5? proofreading exonuclease activity. Thermostable DNA polymerases are useful in many recombinant DNA techniques, especially nucleic acid amplification by the polymerase chain reaction (PCR).
    Type: Application
    Filed: June 3, 2010
    Publication date: January 27, 2011
    Applicant: Roche Diagnostics GmBH
    Inventors: Waltraud ANKENBAUER, Vitaly Svetlichny, Elizaveta Bonch-Osmolovskaya, Christine Ebenbichler, Bernhard Angerer, Gudrun Schmitz-Agheguian, Frank Laue
  • Publication number: 20100285535
    Abstract: The present invention is directed to a synthetic peptide having a length of not more than 30 amino acids comprising a divalent cation binding site. Such a peptide according to the present invention is part of a composition for nucleic acid amplification and provides for a so-called hot start effect.
    Type: Application
    Filed: August 27, 2008
    Publication date: November 11, 2010
    Inventors: Waltraud Ankenbauer, Dieter Heindl, Frank Laue
  • Publication number: 20100258742
    Abstract: The present invention provides kits and methods for composition ratio control based on dyes that are designed to enable energy transfer between each other. In more detail, with the method of the present invention it is possible to verify the mixing ratio of a first component comprising a first dye with a second component comprising a second dye.
    Type: Application
    Filed: March 29, 2010
    Publication date: October 14, 2010
    Inventors: Dieter Heindl, Waltraud Ankenbauer, Hans-Peter Josel, Christian Weilke
  • Publication number: 20100255547
    Abstract: The present invention is directed to a novel chemical compound comprising the structure [Xx-(CH2)m-phosphate-Yy]n, characterized in that 3?m?6, 30?n?60, each x and y is independently from each other 0 or 1, each X and Y is independently from each other any photometrically measurable entity; provided that the terminal X can also be an —OH group or a phosphate group, and further provided that the terminal Y can also be an —OH group. Such a compound can be used as a suitable hot start additive for PCR based amplification of nucleic acids.
    Type: Application
    Filed: August 25, 2009
    Publication date: October 7, 2010
    Inventors: Waltraud Ankenbauer, Dieter Heindl, Frank Laue, Eva Walter, Renate Kolb
  • Patent number: 7759107
    Abstract: A purified thermostable enzyme is derived form the thermophilic archaebacterium Thermococcus gorgonarius. The enzyme can be native or recombinant, retains approximately 90% of its activity after incubation for two hours at 95° C. in the presence of stabilizing agents and possesses 3?-5? proofreading exonuclease activity. Thermostable DNA polymerases are useful in many recombinant DNA techniques, especially nucleic acid amplification by the polymerase chain reaction (PCR).
    Type: Grant
    Filed: June 9, 2008
    Date of Patent: July 20, 2010
    Assignee: Roche Diagnostics GmbH
    Inventors: Waltraud Ankenbauer, Vitaly Svetlichny, Elizaveta Bonch-Osmolovskaya, Christine Ebenbichler, Bernhard Angerer, Gudrun Schmitz-Agheguian, Frank Laue
  • Publication number: 20090269766
    Abstract: The present invention is directed to a composition comprising a DNA Polymerase which is preferably thermostable, Deoxynucleotides, at least one primer oligonucleotide or a pair of amplification primers, and randomized 5-8 mer oligonucleotide, characterized in that said oligonucleotide comprises a modification with an organic hydrophobic moiety Such a composition is specifically useful for performing hot start PCR.
    Type: Application
    Filed: March 18, 2009
    Publication date: October 29, 2009
    Inventors: Dieter Heindl, Waltraud Ankenbauer, Frank Laue
  • Publication number: 20090181401
    Abstract: The present invention is directed to a method and a composition for amplifying and detecting a target nucleic comprising subjecting said target nucleic acid to a real time PCR amplification reaction in the presence of a thermostable DNA polymerase, a thermostable double strand dependent 3?-5? exonuclease having a temperature optimum above 37° C.
    Type: Application
    Filed: March 19, 2009
    Publication date: July 16, 2009
    Inventors: Dieter Heindl, Waltraud Ankenbauer, Frank Laue