Patents by Inventor James Jian Quan Wang

James Jian Quan 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).

  • Methods and compositions for detecting bacterial contamination
    Patent number: 11274351
    Abstract: Compositions, reactions mixtures, kits, and systems for detecting bacterial contamination are provided, as well as methods of using the same.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: March 15, 2022
    Assignee: DCH MOLECULAR DIAGNOSTICS, INC.
    Inventors: James Jian Quan Wang, Xiangmin Cui, Wayne Jer Hsieh, HiuNam Chan
  • METHODS AND COMPOSITIONS FOR DETECTING BACTERIAL CONTAMINATION
    Publication number: 20200080134
    Abstract: Compositions, reactions mixtures, kits, and systems for detecting bacterial contamination are provided, as well as methods of using the same.
    Type: Application
    Filed: July 2, 2019
    Publication date: March 12, 2020
    Inventors: James Jian Quan WANG, Xiangmin CUI, HiuNam CHAN
  • Methods and compositions for detecting bacterial contamination
    Patent number: 10392670
    Abstract: Compositions, reactions mixtures, kits, and systems for detecting bacterial contamination are provided, as well as methods of using the same.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: August 27, 2019
    Assignee: DCH MOLECULAR DIAGNOSTICS, INC.
    Inventors: James Jian Quan Wang, Xiangmin Cui, HiuNam Chan
  • Closed-system multi-stage nucleic acid amplification reactions
    Patent number: 8728765
    Abstract: The invention is directed to systems, methods, and apparatus for carrying out multi-stage amplification reactions, especially under fluidly closed conditions. In one aspect, methods of the invention are carried out in a fluidly closed reaction system that permits the isolation of a portion of a first (or prior) reaction mixture and its use as a sample or specimen in a second (or subsequent) reaction mixture, thereby substantially avoiding interfering effects that first reaction components may have in the second reaction if both reaction mixtures were simply combined together. In this aspect, systems, methods, and apparatus of the invention may be used with any amplification reaction that permits multiple stages of amplification based on the use of nested primers.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: May 20, 2014
    Assignee: Cepheid
    Inventors: Jesus Ching, Ronald Chang, Douglas Dority, Jian Ping Zhang, James Jian Quan Wang, Wendy Wong, Kendra Lara Paul, Reuel Van Atta
  • CLOSED-SYSTEM MULTI-STAGE NUCLEIC ACID AMPLIFICATION REACTIONS
    Publication number: 20120244534
    Abstract: The invention is directed to systems, methods, and apparatus for carrying out multi-stage amplification reactions, especially under fluidly closed conditions. In one aspect, methods of the invention are carried out in a fluidly closed reaction system that permits the isolation of a portion of a first (or prior) reaction mixture and its use as a sample or specimen in a second (or subsequent) reaction mixture, thereby substantially avoiding interfering effects that first reaction components may have in the second reaction if both reaction mixtures were simply combined together. In this aspect, systems, methods, and apparatus of the invention may be used with any amplification reaction that permits multiple stages of amplification based on the use of nested primers.
    Type: Application
    Filed: February 15, 2012
    Publication date: September 27, 2012
    Applicant: Cephied
    Inventors: Jesus Ching, Ronald Chang, Douglas Dority, Jian Ping Zhang, James Jian Quan Wang, Wendy Wingkei Wong, Kendra Lara Paul, Reuel Van Atta
  • Closed-system multi-stage nucleic acid amplification reactions
    Patent number: 8133703
    Abstract: The invention is directed to systems, methods, and apparatus for carrying out multi-stage amplification reactions, especially under fluidly closed conditions. In one aspect, methods of the invention are carried out in a fluidly closed reaction system that permits the isolation of a portion of a first (or prior) reaction mixture and its use as a sample or specimen in a second (or subsequent) reaction mixture, thereby substantially avoiding interfering effects that first reaction components may have in the second reaction if both reaction mixtures were simply combined together. In this aspect, systems, methods, and apparatus of the invention may be used with any amplification reaction that permits multiple stages of amplification based on the use of nested primers.
    Type: Grant
    Filed: October 27, 2005
    Date of Patent: March 13, 2012
    Assignee: Ceoheid
    Inventors: Jesus Ching, Ronald Chang, Douglas Bryan Dority, Jian Ping Zhang, James Jian Quan Wang, Wendy Wingkei Wong, Kendra Lara Paul, Reuel Van Atta