Patents by Inventor Suhman Chung

Suhman Chung 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: 11807667
    Abstract: The present invention provides novel engineered polypeptides that support both reverse transcription and DNA amplification in manganese-independent reactions. The present invention also provides methods for amplifying template nucleic acids using such polypeptides. This invention addresses deficiencies in the current state of the art in nucleic acid amplification-based detection of template nucleic acids, especially RNA targets, including deficiencies in detection sensitivity, specificity, enzyme stability, inhibitor tolerance and time to result compared with manganese-dependent thermostable reverse transcriptases and two-enzyme solutions.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: November 7, 2023
    Assignee: QIAGEN BEVERLY, LLC.
    Inventors: Thomas William Schoenfeld, Ryan Charles Heller, Katarzyna Crissy, Suhman Chung
  • Publication number: 20220348891
    Abstract: The present invention provides novel engineered reverse transcriptase enzymes that afford beneficial improvements in thermal stability, processivity, cDNA yields and elimination of secondary enzymatic activity. The present invention also provides methods for amplifying template nucleic acids using such reverse transcriptase enzymes. This invention addresses deficiencies in the current state of the art reverse transcriptase enzymes in RNA detection and analysis including deficiencies in detection sensitivity, specificity, side enzyme activities, enzyme stability and synthesis capacity, especially when using template nucleic acids ranging in length, secondary structure and nucleotide content.
    Type: Application
    Filed: September 18, 2020
    Publication date: November 3, 2022
    Inventors: Suhman CHUNG, David Mark SCHUSTER, Thomas William SCHOENFELD
  • Publication number: 20210171580
    Abstract: The present invention provides novel engineered polypeptides that support both reverse transcription and DNA amplification in manganese-independent reactions. The present invention also provides methods for amplifying template nucleic acids using such polypeptides. This invention addresses deficiencies in the current state of the art in nucleic acid amplification-based detection of template nucleic acids, especially RNA targets, including deficiencies in detection sensitivity, specificity, enzyme stability, inhibitor tolerance and time to result compared with manganese-dependent thermostable reverse transcriptases and two-enzyme solutions.
    Type: Application
    Filed: April 30, 2019
    Publication date: June 10, 2021
    Inventors: Thomas William Schoenfeld, Ryan Charles Heller, Katarzyna Crissy, Suhman Chung
  • Patent number: 8993768
    Abstract: Disclosed are compounds that inhibit RNase H activity of retroviruses, for example, a compound of formula (I) wherein R1, R2, and R3 are as described herein, as well as pharmaceutically acceptable salts, solvates, stereoisomers, and prodrugs thereof. Pharmaceutical compositions comprising such compounds, as well as methods of use, and treatment or prevention of infection by human immunodeficiency virus (HIV).
    Type: Grant
    Filed: May 10, 2012
    Date of Patent: March 31, 2015
    Assignee: The United States of America, as represented by the Secretary, Department of Health and Human Services
    Inventors: John A. Beutler, Stuart F. J. LeGrice, Craig Thomas, Jian-Kang Jiang, Suhman Chung, Jennifer Wilson
  • Publication number: 20140249181
    Abstract: Disclosed are compounds that inhibit RNase H activity of retroviruses, for example, a compound of formula (I) wherein R1, R2, and R3 are as described herein, as well as pharmaceutically acceptable salts, solvates, stereoisomers, and prodrugs thereof. Pharmaceutical compositions comprising such compounds, as well as methods of use, and treatment or prevention of infection by human immunodeficiency virus (HIV).
    Type: Application
    Filed: May 10, 2012
    Publication date: September 4, 2014
    Applicant: The united States of America, as represented by the Secretary, Department of Health and Human Serv
    Inventors: John A. Beutler, Stuart F.J. LeGrice, Craig Thomas, Jian-Kang Jiang, Suhman Chung, Jennifer Wilson