Patents by Inventor Yexun Wang

Yexun Wang 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: 10316351
    Abstract: The present disclosure provides methods, arrays and kits for assessing the quality of genomic DNA samples, especially those obtained from formalin-fixed paraffin-embedded (FFPE) samples. The methods, arrays and kits provided herein use primer pairs specific to regions in the genomes of the organisms from which genomic DNA samples are obtained that have identical or nearly identical copies distributed across multiple chromosomes.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: June 11, 2019
    Assignee: QIAGEN Sciences, LLC
    Inventors: Yexun Wang, John DiCarlo, Vikram Devgan, Qiong Jiang, Quan Peng
  • Publication number: 20190112647
    Abstract: The present disclosure provides primers, primer sets, kits and methods for multiple displacement amplification, especially in combination with nucleic acid sequencing. The primers comprise self-complementary sequences at their 5? termini and random or semi-random sequences at their 3? termini. Use of such primers facilitates handling of multiple samples, increases sequence coverage uniformity, and improves sequencing error corrections.
    Type: Application
    Filed: March 20, 2017
    Publication date: April 18, 2019
    Inventors: Yexun WANG, Quan PENG
  • Publication number: 20190062822
    Abstract: The present disclosure provides methods and kits for highly multiplex single primer extensions using a MutS protein and Mg2+ at a concentration higher than that in a typical PCR reaction. Also disclosed is the use of such methods and kits in next generation sequencing.
    Type: Application
    Filed: October 14, 2016
    Publication date: February 28, 2019
    Inventors: Yexun Wang, Quan Peng
  • Patent number: 10081838
    Abstract: The present invention relates to a set of biomarkers, microarrays that provide for detection thereof, an expression signature comprising 16 genes or a subset thereof, and the use thereof in determining the regulation status of IL-6/STAT3 signaling pathway in a cell sample or subject, as well as compositions for the detection thereof. The regulation status of IL-6/STAT3 signaling pathway in a cell sample or subject may be assayed based on the level of expression of one or more of these genes. The methods and compositions provided herein may be used to evaluate IL-6/STAT3 pathway regulation status in a sample; classify a cell sample as having a deregulated or regulated IL-6/STAT3 signaling pathway; determine whether an agent modulates the IL-6/STAT3 signaling pathway; predict the response of a subject to an agent that modulates the IL-6/STAT3 signaling pathway; assign treatment to a subject; and/or evaluate the pharmacodynamic effects of therapies designed to regulate IL-6/STAT3 pathway signaling.
    Type: Grant
    Filed: May 3, 2013
    Date of Patent: September 25, 2018
    Assignee: QIAGEN SCIENCES, LLC
    Inventors: Zhong Wu, Martin Schlumpberger, John Dicarlo, Vikram Devgan, Yexun Wang
  • Publication number: 20180208971
    Abstract: The present disclosure provides methods, arrays and kits for assessing the quality of genomic DNA samples, especially those obtained from formalin-fixed paraffin-embedded (FFPE) samples. The methods, arrays and kits provided herein use primer pairs specific to regions in the genomes of the organisms from which genomic DNA samples are obtained that have identical or nearly identical copies distributed across multiple chromosomes.
    Type: Application
    Filed: March 13, 2018
    Publication date: July 26, 2018
    Inventors: Yexun Wang, John DiCarlo, Vikram Devgan, Qiong Jiang, Quan Peng
  • Patent number: 9963736
    Abstract: The present disclosure provides methods, arrays and kits for assessing the quality of genomic DNA samples, especially those obtained from formalin-fixed paraffin-embedded (FFPE) samples. The methods, arrays and kits provided herein use primer pairs specific to regions in the genomes of the organisms from which genomic DNA samples are obtained that have identical or nearly identical copies distributed across multiple chromosomes.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: May 8, 2018
    Assignee: Qiagen Sciences, LLC
    Inventors: Yexun Wang, John DiCarlo, Vikram Devgan, Qiong Jiang, Quan Peng
  • Publication number: 20180002738
    Abstract: The present disclosure provides methods and kits for performing high multiplex PCR using molecular barcodes. The methods disclosed herein separately extend a set of primers (BC primers) that each comprise a target-specific sequence, a molecular barcode and a universal sequence, and amplify the resulting extension products using another set of primers (LA primers) that each comprise another target-specific sequence and a universal sequence. The methods may further comprise amplification using universal primers (preferably comprising an adapter).
    Type: Application
    Filed: January 21, 2016
    Publication date: January 4, 2018
    Inventors: Yexun Wang, Quan Peng
  • Publication number: 20160017320
    Abstract: The present disclosure provides oligonucleotides that comprise semi-random barcode sequences. Such oligonucleotides may be incorporated into reverse transcription primers, PCR primers, or portions of sequencing adapters in preparing sequencing libraries. The resulting sequencing libraries can be used for accurate sequencing, including DNA or RNA counting and mutation detection. Methods and kits for preparing sequencing adapters and sequencing libraries are also provided.
    Type: Application
    Filed: July 10, 2015
    Publication date: January 21, 2016
    Inventors: Yexun Wang, Zhong Wu
  • Publication number: 20150232926
    Abstract: The present invention relates to a set of biomarkers, microarrays that provide for detection thereof, an expression signature comprising 16 genes or a subset thereof, and the use thereof in determining the regulation status of IL-6/STAT3 signaling pathway in a cell sample or subject, as well as compositions for the detection thereof. The regulation status of IL-6/STAT3 signaling pathway in a cell sample or subject may be assayed based on the level of expression of one or more of these genes. The methods and compositions provided herein may be used to evaluate IL-6/STAT3 pathway regulation status in a sample; classify a cell sample as having a deregulated or regulated IL-6/STAT3 signaling pathway; determine whether an agent modulates the IL-6/STAT3 signaling pathway; predict the response of a subject to an agent that modulates the IL-6/STAT3 signaling pathway; assign treatment to a subject; and/or evaluate the pharmacodynamic effects of therapies designed to regulate IL-6/STAT3 pathway signaling.
    Type: Application
    Filed: May 3, 2013
    Publication date: August 20, 2015
    Inventors: Zhong Wu, Martin Schlumpberger, John Dicarlo, Vikram Devgan, Yexun Wang
  • Patent number: 9051606
    Abstract: The present application relates to Multicomponent Nucleic Acid Enzymes (MNAzymes), which may be used for detecting, identifying and/or quantifying targets. More particularly, this application provides methods of designing and making more reliable MNAzymes, as well as compositions comprising MNAzyme components and methods of using MNAzymes.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: June 9, 2015
    Assignee: QIAGEN GAITHERSBURG, INC.
    Inventors: Guozhen Liu, Quan Peng, Yexun Wang, Samuel J. Rulli, Jing-Yi Lo, Rachel Gardner, Grace J. Kim
  • Patent number: 9012149
    Abstract: Improved methods that increase the specificity and sensitivity of detection of small RNAs, including miRNAs, using oligonucleotide primers and nucleic acid amplification, are provided. Reaction conditions that result in preferential decrease in cDNA synthesis of RNAs other than the small RNA molecules targeted for detection during miRNA tailing and reverse transcription reactions are described. Using these reaction conditions greater sensitivity and specificity of amplification of small RNAs including miRNAs is achieved.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: April 21, 2015
    Assignee: QIAGEN Sciences LLC
    Inventors: Daniel Y. Kim, Yexun Wang
  • Publication number: 20140274734
    Abstract: The present disclosure provides methods, arrays and kits for assessing the quality of genomic DNA samples, especially those obtained from formalin-fixed paraffin-embedded (FFPE) samples. The methods, arrays and kits provided herein use primer pairs specific to regions in the genomes of the organisms from which genomic DNA samples are obtained that have identical or nearly identical copies distributed across multiple chromosomes.
    Type: Application
    Filed: March 13, 2014
    Publication date: September 18, 2014
    Applicant: QIAGEN Sciences, LLC
    Inventors: Yexun Wang, John DiCarlo, Vikram Devgan, Qiong Jiang, Quan Peng
  • Patent number: 8399221
    Abstract: Improved methods that increase the specificity and sensitivity of detection of small RNAs, including miRNAs, using oligonucleotide primers and nucleic acid amplification, are provided. Reaction conditions that result in preferential decrease in cDNA synthesis of RNAs other than the small RNA molecules targeted for detection during miRNA tailing and reverse transcription reactions are described. Using these reaction conditions greater sensitivity and specificity of amplification of small RNAs including miRNAs is achieved.
    Type: Grant
    Filed: November 4, 2008
    Date of Patent: March 19, 2013
    Assignee: SABiosciences Corporation
    Inventors: Daniel Y. Kim, Yexun Wang
  • Publication number: 20120252689
    Abstract: The present invention relates to a novel set of 16 biomarkers, microarrays that provide for the detection thereof, an expression signature comprising 16 genes or a subset thereof, and the use thereof in determining the regulation status of Wnt/?-catenin signaling pathway. The regulation status of Wnt/?-catenin signaling pathway may be assayed based on the level of expression of one or more of these genes. The expression of these biomarkers may be used to evaluate Wnt/?-catenin pathway deregulation status; classify a cell sample as having a deregulated or regulated Wnt/?-catenin signaling pathway; determine whether an agent modulates the Wnt/?-catenin signaling pathway; predict response of a subject to an agent that modulates the Wnt/?-catenin signaling pathway; assign treatment to a subject; or evaluate the pharmacodynamic effects of therapies designed to regulate Wnt/?-catenin pathway signaling.
    Type: Application
    Filed: April 2, 2012
    Publication date: October 4, 2012
    Inventors: Zhong Wu, John DiCarlo, Yexun Wang
  • Publication number: 20120178078
    Abstract: The present application relates to Multicomponent Nucleic Acid Enzymes (MNAzymes), which may be used for detecting, identifying and/or quantifying targets. More particularly, this application provides methods of designing and making more reliable MNAzymes, as well as compositions comprising MNAzyme components and methods of using MNAzymes.
    Type: Application
    Filed: September 12, 2011
    Publication date: July 12, 2012
    Applicant: Qiagen Gaithersburg, Inc.
    Inventors: Guozhen Liu, Quan Peng, Yexun Wang, Samuel J. Rulli, Jing-Yi Lo, Rachel Gardner, Grace J. Kim
  • Publication number: 20100112644
    Abstract: Improved methods that increase the specificity and sensitivity of detection of small RNAs, including miRNAs, using oligonucleotide primers and nucleic acid amplification, are provided. Reaction conditions that result in preferential decrease in cDNA synthesis of RNAs other than the small RNA molecules targeted for detection during miRNA tailing and reverse transcription reactions are described. Using these reaction conditions greater sensitivity and specificity of amplification of small RNAs including miRNAs is achieved.
    Type: Application
    Filed: November 4, 2008
    Publication date: May 6, 2010
    Applicant: SABiosciences
    Inventors: Daniel Y. Kim, Yexun Wang