Patents by Inventor Qiandong Zeng

Qiandong Zeng 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: 20250149115
    Abstract: The present disclosure relates to a clinical genetic screening assay that designates a subset of high-risk segments within a next generation sequencing (NGS) sample for confirmatory testing. Particularly, aspects are directed towards obtaining (i) regions of interest (ROIs) and associated variant data, (ii) population allele frequency information, and (iii) a sensitivity profile, performing NGS on a sample obtained from a subject to obtain NGS read data for the ROIs, performing a rescue minimization protocol to designate a subset of ROIs for Sanger resequencing, and performing Sanger resequencing on the subset of ROIs. The NGS read data and the Sanger resequencing data are used to generate accurate variant callings and/or diagnosis for the subject.
    Type: Application
    Filed: November 4, 2024
    Publication date: May 8, 2025
    Applicant: Laboratory Corporation of America Holdings
    Inventors: Eldar Yehuda Giladi, Qiandong Zeng, Angela Antoinette Kenyon, Stanley Ian Letovsky
  • Publication number: 20240412808
    Abstract: The present disclosure relates to a computational strategy with a digital read-out for detecting variants in a targeted genomic region. Particularly, aspects are directed to generating simulated variants for the targeted genomic region, detecting zero or more variations in a first allele, and zero or more variations in a second allele by inputting the simulated sequencing files into a sequencing analysis pipeline for alignment to a reference genome, identifying the zero or more variations between the first and second allele's simulated sequencing read file and the reference genome, and outputting a variant table comprising the zero or more detected variants and their corresponding variant features, concatenating the variant features for the zero or more detected variants in the first allele and in the second allele to generate a sequencing fingerprint profile, and outputting, the sets of simulated variants and their corresponding sequencing fingerprint profiles into a truth fingerprint table.
    Type: Application
    Filed: June 10, 2024
    Publication date: December 12, 2024
    Inventors: Qiandong Zeng, Yuanyu Cao
  • Publication number: 20230005569
    Abstract: The present disclosure relates to assessment of genetic variation, and in particular to techniques for detection of chromosomal and sub-chromosomal copy number variations. In one aspect, a computer-implemented method is provided for detecting a presence or absence of copy number variation in a target sample. The method includes obtaining sequencing data for a plurality of samples, determining a first normalized coverage for each segment/element in each of the samples according to the sequencing data, determining a second normalized coverage, including a copy number, for each segment/element in each of the samples according to the first normalized coverage, classifying the copy number for each segment/element in a target set in the target sample based on rule-based approaches, machine learning based approaches, or a combination thereof, and outputting a presence or absence of a copy number variation for each segment/element in the target set in the target sample according to the classification.
    Type: Application
    Filed: June 30, 2022
    Publication date: January 5, 2023
    Inventors: Qiandong Zeng, Winnie Xin, Neil Russell, Chen Xu, Kenneth Phillips
  • Publication number: 20210366575
    Abstract: Disclosed are methods, systems and computer-program products for the determination of complex genetic variants. The disclosed methods, systems and computer-program products may include obtaining a mutant scaffold nucleotide sequence that comprises a sequence that includes mutations characteristic of the complex genetic variant; obtaining a wild-type scaffold nucleotide sequence having a wild-type sequence; generating an alignment of at least one sequence from the sample to the mutant scaffold and to the wild-type scaffold; and determining that the sample contains a mutation characteristic of the complex genetic variant based on alignment to the mutant scaffold and not the wild-type scaffold.
    Type: Application
    Filed: May 19, 2021
    Publication date: November 25, 2021
    Inventors: Qiandong Zeng, Natalia Tszine Leach
  • Publication number: 20140255443
    Abstract: The invention provides methods of treating subject with polypeptides having at least 80% identity to SEQ ID NO: 5326. The methods stimulate an immune response in the subject and provide methods for prevention and treatment of pathological conditions resulting from bacterial infection.
    Type: Application
    Filed: December 5, 2013
    Publication date: September 11, 2014
    Applicant: Sanofi Pasteur Limited/Sanofi Pasteur Limitee
    Inventors: Lynn Doucette-Stamm, David Bush, Qiandong Zeng, Timothy Opperman, Chad Eric Houseweart
  • Patent number: 8609107
    Abstract: The invention provides methods of treating subject with polypeptides having at least 80% identity to SEQ ID NO: 5326. The methods stimulate an immune response in the subject and provide methods for prevention and treatment of pathological conditions resulting from bacterial infection.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: December 17, 2013
    Assignee: Sanofi Pasteur Limited
    Inventors: Lynn Doucette-Stamm, David Bush, Qiandong Zeng, Timothy Opperman, Chad Eric Houseweart
  • Publication number: 20130078271
    Abstract: The invention provides methods of treating subject with polypeptides having at least 80% identity to SEQ ID NO: 5326. The methods stimulate an immune response in the subject and provide methods for prevention and treatment of pathological conditions resulting from bacterial infection.
    Type: Application
    Filed: September 13, 2012
    Publication date: March 28, 2013
    Applicant: Sanofi Pasteur Limited/Sanofi Pasteur Limitee
    Inventors: Lynn Doucette-Stamm, David Bush, Qiandong Zeng, Timothy Opperman, Chad Eric Houseweart
  • Patent number: 8298788
    Abstract: The invention provides isolated polypeptide and nucleic acid sequences derived from Streptococcus pneumoniae that are useful in diagnosis and therapy of pathological conditions; antibodies against the polypeptides; and methods for the production of the polypeptides. The invention also provides methods for the detection, prevention and treatment of pathological conditions resulting from bacterial infection.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: October 30, 2012
    Assignee: Sanofi Pasteur Limited
    Inventors: Lynn Doucette-Stamm, David Bush, Qiandong Zeng, Timothy Opperman, Chad Eric Houseweart
  • Patent number: 8293249
    Abstract: The invention provides isolated polypeptide and nucleic acid sequences derived from Streptococcus pneumoniae that are useful in diagnosis and therapy of pathological conditions; antibodies against the polypeptides; and methods for the production of the polypeptides. The invention also provides methods for the detection, prevention and treatment of pathological conditions resulting from bacterial infection.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: October 23, 2012
    Assignee: Sanofi Pasteur Limited/Sanofi Pasteur Limitee
    Inventors: Lynn Doucette-Stamm, David Bush, Qiandong Zeng, Timothy Opperman, Chad Eric Houseweart
  • Patent number: 8293884
    Abstract: The invention provides isolated polypeptide and nucleic acid sequences derived from Streptococcus pneumoniae that are useful in diagnosis and therapy of pathological conditions; antibodies against the polypeptides; and methods for the production of the polypeptides. The invention also provides methods for the detection, prevention and treatment of pathological conditions resulting from bacterial infection.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: October 23, 2012
    Assignee: Sanofi Pasteur Limited/Sanofi Pasteur Limitée
    Inventors: Lynn Doucette-Stamm, David Bush, Qiandong Zeng, Timothy Opperman, Chad Eric Houseweart
  • Patent number: 8288519
    Abstract: The invention provides isolated polypeptide and nucleic acid sequences derived from Streptococcus pneumoniae that are useful in diagnosis and therapy of pathological conditions; antibodies against the polypeptides; and methods for the production of the polypeptides. The invention also provides methods for the detection, prevention and treatment of pathological conditions resulting from bacterial infection.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: October 16, 2012
    Assignee: Sanofi Pasteur Limited
    Inventors: Lynn Doucette-Stamm, David Bush, Qiandong Zeng, Timothy Opperman, Chad Eric Houseweart
  • Patent number: 8003775
    Abstract: The invention provides isolated polypeptide and nucleic acid sequences derived from Streptococcus pneumoniae that are useful in diagnosis and therapy of pathological conditions; antibodies against the polypeptides; and methods for the production of the polypeptides. The invention also provides methods for the detection, prevention and treatment of pathological conditions resulting from bacterial infection.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: August 23, 2011
    Assignee: Sanofi Pasteur Limited
    Inventors: Lynn Doucette-Stamm, David Bush, Qiandong Zeng, Timothy Opperman, Chad Eric Houseweart
  • Patent number: 7893230
    Abstract: The invention provides isolated polypeptide and nucleic acid sequences derived from Streptococcus pneumoniae that are useful in diagnosis and therapy of pathological conditions; antibodies against the polypeptides; and methods for the production of the polypeptides. The invention also provides methods for the detection, prevention and treatment of pathological conditions resulting from bacterial infection.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: February 22, 2011
    Assignee: Sanofi Pasteur Limited
    Inventors: Lynn Doucette-Stamm, David Bush, Qiandong Zeng, Timothy Opperman, Chad Eric Houseweart
  • Patent number: 7875438
    Abstract: The invention provides isolated polypeptide and nucleic acid sequences derived from Streptococcus pneumoniae that are useful in diagnosis and therapy of pathological conditions; antibodies against the polypeptides; and methods for the production of the polypeptides. The invention also provides methods for the detection, prevention and treatment of pathological conditions resulting from bacterial infection.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: January 25, 2011
    Assignee: Sanofi Pasteur Limited/Sanofi Pasteur Limitee
    Inventors: Lynn Doucette-Stamm, David Bush, Qiandong Zeng, Timothy Opperman, Chad Eric Houseweart
  • Patent number: 7875439
    Abstract: The invention provides isolated polypeptide and nucleic acid sequences derived from Streptococcus pneumoniae that are useful in diagnosis and therapy of pathological conditions; antibodies against the polypeptides; and methods for the production of the polypeptides. The invention also provides methods for the detection, prevention and treatment of pathological conditions resulting from bacterial infection.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: January 25, 2011
    Assignees: Sanofi Pasteur Limited, Sanofi Pasteur Limitee
    Inventors: Lynn Doucette-Stamm, David Bush, Qiandong Zeng, Timothy Opperman, Chad Eric Houseweart
  • Patent number: 7875437
    Abstract: The invention provides isolated polypeptide and nucleic acid sequences derived from Streptococcus pneumoniae that are useful in diagnosis and therapy of pathological conditions; antibodies against the polypeptides; and methods for the production of the polypeptides. The invention also provides methods for the detection, prevention and treatment of pathological conditions resulting from bacterial infection.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: January 25, 2011
    Assignee: Sanofi Pasteur Limited/Sanofi Pasteur Limitee
    Inventors: Lynn Doucette-Stamm, David Bush, Qiandong Zeng, Timothy Opperman, Chad Eric Houseweart
  • Patent number: 7834166
    Abstract: The invention provides isolated polypeptide and nucleic acid sequences derived from Streptococcus pneumoniae that are useful in diagnosis and therapy of pathological conditions; antibodies against the polypeptides; and methods for the production of the polypeptides. The invention also provides methods for the detection, prevention and treatment of pathological conditions resulting from bacterial infection.
    Type: Grant
    Filed: September 20, 2006
    Date of Patent: November 16, 2010
    Assignee: Sanofi Pasteur Limited
    Inventors: Lynn Doucette-Stamm, David Bush, Qiandong Zeng, Timothy Opperman, Chad Eric Houseweart
  • Patent number: 7790412
    Abstract: The invention provides isolated polypeptide and nucleic acid sequences derived from Streptococcus pneumoniae that are useful in diagnosis and therapy of pathological conditions; antibodies against the polypeptides; and methods for the production of the polypeptides. The invention also provides methods for the detection, prevention and treatment of pathological conditions resulting from bacterial infection.
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: September 7, 2010
    Assignee: Sanofi Pasteur Limited/Sanofi Pasteur Limitée
    Inventors: Lynn Doucette-Stamm, David Bush, Qiandong Zeng, Timothy Opperman, Chad Eric Houseweart
  • Patent number: 7626000
    Abstract: The invention provides isolated polypeptide and nucleic acid sequences derived from Streptococcus pneumoniae that are useful in diagnosis and therapy of pathological conditions; antibodies against the polypeptides; and methods for the production of the polypeptides. The invention also provides methods for the detection, prevention and treatment of pathological conditions resulting from bacterial infection.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: December 1, 2009
    Assignee: Sanofi Pasteur Limited/Sanofi Pasteur Limitée
    Inventors: Lynn Doucette-Stamm, David Bush, Qiandong Zeng, Timothy Opperman, Chad Eric Houseweart
  • Patent number: 7582731
    Abstract: The invention provides isolated polypeptide and nucleic acid sequences derived from Streptococcus pneumoniae that are useful in diagnosis and therapy of pathological conditions; antibodies against the polypeptides; and methods for the production of the polypeptides. The invention also provides methods for the detection, prevention and treatment of pathological conditions resulting from bacterial infection.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: September 1, 2009
    Assignee: Sanofi Pasteur Limited
    Inventors: Lynn Doucette-Stamm, David Bush, Qiandong Zeng, Timothy Opperman, Chad Eric Houseweart