Patents by Inventor Elke Faatz

Elke Faatz 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: 20220220158
    Abstract: The disclosure relates to a polypeptide suitable for detecting antibodies against a flavivirus in an isolated biological sample having a flavivirus NS1 wing domain specific amino acid sequence, wherein no amino acid sequences from the NS1 ?-ladder domain of said flavivirus are present in the polypeptide. In an embodiment, the flavivirus is selected from Zika virus (ZIKV), West-Nile virus (WNV), Dengue virus types 1-4 (DENV1-4), tick-borne encephalitis virus (TBEV), yellow fever virus (YFV) and Japanese encephalitis virus (JEV). Also disclosed is a method for producing said flaviviral NS1 wing domain specific polypeptides, a method for detecting antibodies specific for a first flavivirus species, the use of said flaviviral NS1 wing domain specific polypeptides for detecting antibodies as well as a reagent kit for detecting said flavivirus antibodies that has a flavivirus NS1 wing domain polypeptide.
    Type: Application
    Filed: March 28, 2022
    Publication date: July 14, 2022
    Inventors: Elke Faatz, Alexander Riedel, Christian Scholz, Peter Muench, Gloria Tabares, Mario Gloeck, Silke Luebcke, Juliane Benz
  • Patent number: 11319351
    Abstract: The disclosure relates to a polypeptide suitable for detecting antibodies against a flavivirus in an isolated biological sample having a flavivirus NS1 wing domain specific amino acid sequence, wherein no amino acid sequences from the NS1 ß-ladder domain of said flavivirus are present in the polypeptide. In an embodiment, the flavivirus is selected from Zika virus (ZIKV), West-Nile virus (WNV), Dengue virus types 1-4 (DENV1-4), tick-borne encephalitis virus (TBEV), yellow fever virus (YFV) and Japanese encephalitis virus (JEV). Also disclosed is a method for producing said flaviviral NS1 wing domain specific polypeptides, a method for detecting antibodies specific for a first flavivirus species, the use of said flaviviral NS1 wing domain specific polypeptides for detecting antibodies as well as a reagent kit for detecting said flavivirus antibodies that has a flavivirus NS1 wing domain polypeptide.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: May 3, 2022
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Elke Faatz, Alexander Riedel, Christian Scholz, Peter Muench, Gloria Tabares, Mario Gloeck, Silke Luebcke, Juliane Benz
  • Patent number: 11312750
    Abstract: The disclosure concerns a polypeptide suitable for detecting antibodies against Zika virus in an isolated biological sample having a Zika virus NS1 wing domain specific amino acid sequence and variants thereof, wherein no further Zika virus specific amino acid sequences are present in the polypeptide. This polypeptide does not immunologically cross-react with antibodies raised against structurally related antigens from tick-borne encephalitis virus, Dengue virus 1-4, West Nile virus, yellow fever virus or Japanese encephalitis virus, but immunologically reacts with antibodies raised against full length Zika virus NS1 antigen. Also disclosed is a method of producing a soluble and immunoreactive Zika virus NS1 polypeptide as well as methods and kits for detecting antibodies specific for Zika virus in an isolated sample.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: April 26, 2022
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Elke Faatz, Mario Gloeck, Peter Muench, Alexander Riedel, Christian Scholz, Gloria Tabares
  • Patent number: 11215627
    Abstract: In conventional automatic analyzers, there have been instances where, when a plurality of associated items are analyzed as a set item, there is high variation in the analysis data obtained using the set item, leading to a need for improvement of analysis precision. The present invention comprises performing, in mutual association, a set of preparation steps to carry out until it is time to analyze an unknown sample, the set of preparation steps including a pre-preparation step in which stirring, etc., is performed when an analysis reagent kit is mounted on the analyzer, and a step for correcting a standard curve in which correction samples that correspond to analysis items are used. This makes it possible to perform analysis after the preparation states of a plurality of analysis reagent kits are collected as needed, enabling high-precision analysis of a set item.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: January 4, 2022
    Assignees: HITACHI HIGH-TECH CORPORATION, ROCHE DIAGNOSTICS OPERATIONS, INC.
    Inventors: Kenta Imai, Toshiharu Suzuki, Shigeki Matsubara, Takayuki Sugime, Shunsuke Sasaki, Elke Faatz, Beatus Ofenloch-Haehnle
  • Publication number: 20200048313
    Abstract: The disclosure relates to a polypeptide suitable for detecting antibodies against a flavivirus in an isolated biological sample having a flavivirus NS1 wing domain specific amino acid sequence, wherein no amino acid sequences from the NS1 ß-ladder domain of said flavivirus are present in the polypeptide. In an embodiment, the flavivirus is selected from Zika virus (ZIKV), West-Nile virus (WNV), Dengue virus types 1-4 (DENV1-4), tick-borne encephalitis virus (TBEV), yellow fever virus (YFV) and Japanese encephalitis virus (JEV). Also disclosed is a method for producing said flaviviral NS1 wing domain specific polypeptides, a method for detecting antibodies specific for a first flavivirus species, the use of said flaviviral NS1 wing domain specific polypeptides for detecting antibodies as well as a reagent kit for detecting said flavivirus antibodies that has a flavivirus NS1 wing domain polypeptide.
    Type: Application
    Filed: October 25, 2019
    Publication date: February 13, 2020
    Applicant: Roche Diagnostics Operations, Inc.
    Inventors: Elke Faatz, Alexander Riedel, Christian Scholz, Peter Muench, Gloria Tabares, Mario Gloeck, Silke Luebcke, Juliane Benz
  • Publication number: 20200048312
    Abstract: The disclosure concerns a polypeptide suitable for detecting antibodies against Zika virus in an isolated biological sample having a Zika virus NS1 wing domain specific amino acid sequence and variants thereof, wherein no further Zika virus specific amino acid sequences are present in the polypeptide. This polypeptide does not immunologically cross-react with antibodies raised against structurally related antigens from tick-borne encephalitis virus, Dengue virus 1-4, West Nile virus, yellow fever virus or Japanese encephalitis virus, but immunologically reacts with antibodies raised against full length Zika virus NS1 antigen. Also disclosed is a method of producing a soluble and immunoreactive Zika virus NS1 polypeptide as well as methods and kits for detecting antibodies specific for Zika virus in an isolated sample.
    Type: Application
    Filed: October 25, 2019
    Publication date: February 13, 2020
    Applicant: Roche Diagnostics Operations, Inc.
    Inventors: Elke Faatz, Mario Gloeck, Peter Muench, Alexander Riedel, Christian Scholz, Gloria Tabares
  • Publication number: 20200033342
    Abstract: The invention concerns soluble and antigenic HTLV p24 variants that can be fused to chaperones and their use in diagnostic applications such as immunoassays for detecting antibodies against HTLV-I or HTLV-II in an isolated biological sample. In particular, the invention relates to a soluble HTLV-I or HTLV-II p24 antigen comprising either the N- or the C-terminal domain of p24 and lacking the other domain. Moreover, the invention covers recombinant DNA molecules encoding these HTLV-I and -II fusion antigens as well as their recombinant production using expression vectors and host cells transformed with such expression vectors. In addition, the invention focuses on compositions of these HTLV p24 antigens with HTLV gp21 antigen and on an immunoassay method for detection of HTLV antibodies using the antigens of the invention. Also the use of HTLV p24 antigens in an in vitro diagnostic assay as well as a reagent kit for detection of anti-HTLV-antibodies comprising said HTLV antigens is encompassed.
    Type: Application
    Filed: September 20, 2019
    Publication date: January 30, 2020
    Inventors: Elke Faatz, Christian Scholz, Peter Muench
  • Patent number: 10466242
    Abstract: The invention concerns soluble and antigenic HTLV p24 variants that can be fused to chaperones and their use in diagnostic applications such as immunoassays for detecting antibodies against HTLV-I or HTLV-II in an isolated biological sample. In particular, the invention relates to a soluble HTLV-I or HTLV-II p24 antigen comprising either the N- or the C-terminal domain of p24 and lacking the other domain. Moreover, the invention covers recombinant DNA molecules encoding these HTLV-I and -II fusion antigens as well as their recombinant production using expression vectors and host cells transformed with such expression vectors. In addition, the invention focuses on compositions of these HTLV p24 antigens with HTLV gp21 antigen and on an immunoassay method for detection of HTLV antibodies using the antigens of the invention. Also the use of HTLV p24 antigens in an in vitro diagnostic assay as well as a reagent kit for detection of anti-HTLV-antibodies comprising said HTLV antigens is encompassed.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: November 5, 2019
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Elke Faatz, Christian Scholz, Peter Muench
  • Patent number: 10101349
    Abstract: A test management system is presented. The system comprises an analyzer to perform tests a sample according to a first set of instructions, a manager module connected to the analyzer, and a first order interface connected to the manager module. The manager module directs activity of the analyzer according to a second set of instructions. The first order interface receives an order for a first analytical test and a second analytical test and transmits the order to the manager module. If the order is for the first analytical test, the test manager module forwards the order directly to the analyzer and the sample is analyzed by the analyzer according to the first set of instructions. If the order is for the second analytical test, the manager module handles the order according to the second set of instructions and generates and transmits secondary test requests to the analyzer.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: October 16, 2018
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Sascha Martin Antoni, Martin Burri, Werner Doeppen, Bernhard Eckert, Elke Faatz, Barbara Upmeier, Andreas Woeste, Dieter Roessler, Elena Pfaffenrot
  • Publication number: 20180246133
    Abstract: In conventional automatic analyzers, there have been instances where, when a plurality of associated items are analyzed as a set item, there is high variation in the analysis data obtained using the set item, leading to a need for improvement of analysis precision. The present invention comprises performing, in mutual association, a set of preparation steps to carry out until it is time to analyze an unknown sample, the set of preparation steps including a pre-preparation step in which stirring, etc., is performed when an analysis reagent kit is mounted on the analyzer, and a step for correcting a standard curve in which correction samples that correspond to analysis items are used. This makes it possible to perform analysis after the preparation states of a plurality of analysis reagent kits are collected as needed, enabling high-precision analysis of a set item.
    Type: Application
    Filed: July 1, 2016
    Publication date: August 30, 2018
    Inventors: Kenta IMAI, Toshiharu SUZUKI, Shigeki MATSUBARA, Takayuki SUGIME, Shunsuke SASAKI, Elke FAATZ, Beatus OFENLOCH-HAEHNLE
  • Publication number: 20180164314
    Abstract: Disclosed is a method for detecting a capsid polypeptide of a non-enveloped virus in a sample from a subject which includes (a) contacting the sample with a base, and (b) detecting a capsid polypeptide of the virus in the sample. Moreover, the present disclosure relates to a method for pre-processing a sample from a subject for detection of a virus, including contacting the sample with a base. Moreover, the present disclosure relates to kits, uses and devices related to these methods.
    Type: Application
    Filed: February 9, 2018
    Publication date: June 14, 2018
    Applicant: Roche Diagnostics Operations, Inc.
    Inventors: Elke Faatz, Peter Muench, Mirko Ritter, Gloria Tabares
  • Publication number: 20170269068
    Abstract: The present invention concerns an in vitro method for measurement of 25-hydroxyvitamin D, wherein the potentially interfering compound 24,25-dihydroxyvitamin D3 is blocked by a binding agent specifically binding to 24,25-dihydroxyvitamin D3 and not binding to 25-hydroxyvitamin D.
    Type: Application
    Filed: June 6, 2017
    Publication date: September 21, 2017
    Inventors: Elke Faatz, Michael Gerg, Hans-Peter Josel, Christian Vogl
  • Patent number: 9714949
    Abstract: The invention relates to a method for detecting antibodies against the TpN17 antigen of Treponema pallidum in an isolated sample wherein a peptide sequence of Vibrio cholerae lipoprotein 15 (VcLp15) or a partial sequence thereof is used as a reagent for reduction of interference, i.e. for minimizing false positive results. In addition the invention relates to fusion polypeptides comprising a VcLp15 peptide sequence and a chaperone, to their use as an additive in an immunoassay for said reduction of interferences and for minimizing false positive results and to a reagent kit for detecting antibodies against Treponema pallidum antigens in an isolated sample comprising a TpN17 antigen and said VcLp15-chaperone fusion polypeptide.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: July 25, 2017
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Elke Faatz, Peter Schaarschmidt, Urban Schmitt, Christian Scholz
  • Publication number: 20170184591
    Abstract: The invention concerns soluble and antigenic HTLV p24 variants that can be fused to chaperones and their use in diagnostic applications such as immunoassays for detecting antibodies against HTLV-I or HTLV-II in an isolated biological sample. In particular, the invention relates to a soluble HTLV-I or HTLV-II p24 antigen comprising either the N- or the C-terminal domain of p24 and lacking the other domain. Moreover, the invention covers recombinant DNA molecules encoding these HTLV-I and -II fusion antigens as well as their recombinant production using expression vectors and host cells transformed with such expression vectors. In addition, the invention focuses on compositions of these HTLV p24 antigens with HTLV gp21 antigen and on an immunoassay method for detection of HTLV antibodies using the antigens of the invention. Also the use of HTLV p24 antigens in an in vitro diagnostic assay as well as a reagent kit for detection of anti-HTLV-antibodies comprising said HTLV antigens is encompassed.
    Type: Application
    Filed: August 25, 2016
    Publication date: June 29, 2017
    Inventors: Elke Faatz, Christian Scholz, Peter Muench
  • Publication number: 20170067922
    Abstract: A test management system is presented. The system comprises an analyzer to perform tests a sample according to a first set of instructions, a manager module connected to the analyzer, and a first order interface connected to the manager module. The manager module directs activity of the analyzer according to a second set of instructions. The first order interface receives an order for a first analytical test and a second analytical test and transmits the order to the manager module. If the order is for the first analytical test, the test manager module forwards the order directly to the analyzer and the sample is analyzed by the analyzer according to the first set of instructions. If the order is for the second analytical test, the manager module handles the order according to the second set of instructions and generates and transmits secondary test requests to the analyzer.
    Type: Application
    Filed: August 29, 2016
    Publication date: March 9, 2017
    Inventors: Sascha Martin Antoni, Martin Burri, Werner Doeppen, Bernhard Eckert, Elke Faatz, Barbara Upmeier, Andreas Woeste, Dieter Roessler, Elena Pfaffenrot
  • Patent number: 9316642
    Abstract: The invention concerns soluble variants of Treponema pallidum antigen 47 (TpN47 antigen) comprising at least domain B, or at least domains A and B, optionally domain D of the complete TpN47 protein molecule with the proviso that all antigens lack domain C (amino acid residues 224 to 351) of TpN47. The Tpn47 antigens can be fused to a chaperone. Moreover, the invention covers DNA encoding the antigens, a method of producing these antigens as well as the use of these antigens in an immunodiagnostic assay for the detection of antibodies against Treponema pallidum in an isolated sample.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: April 19, 2016
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Elke Faatz, Peter Schaarschmidt, Urban Schmitt, Christian Scholz
  • Patent number: 9261510
    Abstract: The present invention relates to fusion proteins suitable as test antigens in the detection of infections with pathogens, particularly of primary infections with pathogens. Further, the invention relates to methods for detecting and differentially determining antibodies, particularly IgM antibodies resulting from an infection with a pathogenic organism. Furthermore, test reagents for carrying out these methods are provided.
    Type: Grant
    Filed: April 17, 2008
    Date of Patent: February 16, 2016
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Christian Schotz, Elke Faatz, Peter Schaarschmidt, Urban Schmitt
  • Publication number: 20150132859
    Abstract: The invention relates to a method for detecting antibodies against the TpN17 antigen of Treponema pallidum in an isolated sample wherein a peptide sequence of Vibrio cholerae lipoprotein 15 (VcLp15) or a partial sequence thereof is used as a reagent for reduction of interference, i.e. for minimizing false positive results. In addition the invention relates to fusion polypeptides comprising a VcLp15 peptide sequence and a chaperone, to their use as an additive in an immunoassay for said reduction of interferences and for minimizing false positive results and to a reagent kit for detecting antibodies against Treponema pallidum antigens in an isolated sample comprising a TpN17 antigen and said VcLp15-chaperone fusion polypeptide.
    Type: Application
    Filed: July 18, 2014
    Publication date: May 14, 2015
    Inventors: Elke Faatz, Peter Schaarschmidt, Urban Schmitt, Christian Scholz
  • Publication number: 20150079604
    Abstract: The invention concerns soluble variants of Treponema pallidum antigen 47 (TpN47 antigen) comprising at least domain B, or at least domains A and B, optionally domain D of the complete TpN47 protein molecule with the proviso that all antigens lack domain C (amino acid residues 224 to 351) of TpN47. The Tpn47 antigens can be fused to a chaperone. Moreover, the invention covers DNA encoding the antigens, a method of producing these antigens as well as the use of these antigens in an immunodiagnostic assay for the detection of antibodies against Treponema pallidum in an isolated sample.
    Type: Application
    Filed: July 18, 2014
    Publication date: March 19, 2015
    Inventors: Elke Faatz, Peter Schaarschmidt, Urban Schmitt, Christian Scholz
  • Patent number: 8790659
    Abstract: Disclosed are a recombinant DNA molecule encoding a fusion protein comprising a SlpA chaperone and a target polypeptide wherein human FK506 binding proteins (FKBPs) are excluded as target polypeptides, a corresponding expression vector encoding said fusion protein as well as host cells transformed with said expression vector. Also disclosed are a method for producing the fusion protein, a recombinantly produced fusion protein comprising a SlpA chaperone and a target polypeptide. A further aspect of the invention is the use of the recombinantly produced fusion protein, and a reagent kit containing a recombinantly produced fusion protein comprising a SlpA chaperone and a target polypeptide.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: July 29, 2014
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Christian Scholz, Elke Faatz, Urban Schmitt, Peter Schaarschmidt