Patents by Inventor Qun Zhong

Qun Zhong 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: 20240132939
    Abstract: The invention generally relates to droplet based digital PCR and methods for analyzing a target nucleic acid using the same. In certain embodiments, methods of the invention involve forming sample droplets containing, on average, a single target nucleic acid, amplifying the target in the droplets, excluding droplets containing amplicon from the target and amplicon from a variant of the target, and analyzing target amplicons.
    Type: Application
    Filed: December 12, 2023
    Publication date: April 25, 2024
    Inventors: Jonathan William Larson, Qun Zhong, Darren Roy Link
  • Publication number: 20240093271
    Abstract: The invention generally relates to droplet based digital PCR and methods for analyzing a target nucleic acid using the same. In certain embodiments, methods of the invention involve forming sample droplets containing, on average, a single target nucleic acid, amplifying the target in the droplets, excluding droplets containing amplicon from the target and amplicon from a variant of the target, and analyzing target amplicons.
    Type: Application
    Filed: November 20, 2023
    Publication date: March 21, 2024
    Inventors: Jonathan William Larson, Qun Zhong, Darren Roy Link
  • Patent number: 11898193
    Abstract: The invention generally relates to methods and systems for manipulating droplet size. In certain aspects, the invention provides methods for manipulating droplet size that include forming droplets of aqueous fluid surrounded by an immiscible carrier fluid, and manipulating droplet size during the forming step by adjusting pressure exerted on the aqueous fluid or the carrier fluid.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: February 13, 2024
    Assignee: Bio-Rad Laboratories, Inc.
    Inventors: Benjamin J. Miller, Qun Zhong, Darren Roy Link
  • Publication number: 20240002910
    Abstract: The invention generally relates to droplet based digital PCR and methods for analyzing a target nucleic acid using the same. In certain embodiments, methods of the invention involve forming sample droplets containing, on average, a single target nucleic acid, amplifying the target in the droplets, excluding droplets containing amplicon from the target and amplicon from a variant of the target, and analyzing target amplicons.
    Type: Application
    Filed: September 12, 2023
    Publication date: January 4, 2024
    Inventors: Jonathan William Larson, Qun Zhong, Darren Roy Link
  • Publication number: 20230086845
    Abstract: The invention generally relates to droplet based digital PCR and methods for analyzing a target nucleic acid using the same. In certain embodiments, methods of the invention involve forming sample droplets containing, on average, a single target nucleic acid, amplifying the target in the droplets, excluding droplets containing amplicon from the target and amplicon from a variant of the target, and analyzing target amplicons.
    Type: Application
    Filed: November 22, 2022
    Publication date: March 23, 2023
    Inventors: Jonathan William Larson, Qun Zhong, Darren Roy Link
  • Publication number: 20220213530
    Abstract: The invention generally relates to droplet based digital PCR and methods for analyzing a target nucleic acid using the same. In certain embodiments, methods of the invention involve forming sample droplets containing, on average, a single target nucleic acid, amplifying the target in the droplets, excluding droplets containing amplicon from the target and amplicon from a variant of the target, and analyzing target amplicons.
    Type: Application
    Filed: January 13, 2022
    Publication date: July 7, 2022
    Inventors: Jonathan William Larson, Qun Zhong, Darren Roy Link
  • Publication number: 20220143617
    Abstract: The invention provides methods for assessing one or more predetermined characteristics or properties of a microfluidic droplet within a microfluidic channel, and regulating one or more fluid flow rates within that channel to selectively alter the predetermined microdroplet characteristic or property using a feedback control.
    Type: Application
    Filed: January 24, 2022
    Publication date: May 12, 2022
    Inventors: Benjamin Miller, Brian Hutchison, Andrew Wilson, Jonathan William Larson, Qun Zhong, Yevgeny Yurkovetsky, Darren Link, Mark Weary
  • Patent number: 11268887
    Abstract: The invention provides methods for assessing one or more predetermined characteristics or properties of a microfluidic droplet within a microfluidic channel, and regulating one or more fluid flow rates within that channel to selectively alter the predetermined microdroplet characteristic or property using a feedback control.
    Type: Grant
    Filed: January 2, 2020
    Date of Patent: March 8, 2022
    Assignee: Bio-Rad Laboratories, Inc.
    Inventors: Benjamin Miller, Brian Hutchison, Andrew Wilson, Jonathan William Larson, Qun Zhong, Yevgeny Yurkovetsky, Darren Roy Link, Mark Weary
  • Patent number: 11254968
    Abstract: The invention generally relates to droplet based digital PCR and methods for analyzing a target nucleic acid using the same. In certain embodiments, methods of the invention involve forming sample droplets containing, on average, a single target nucleic acid, amplifying the target in the droplets, excluding droplets containing amplicon from the target and amplicon from a variant of the target, and analyzing target amplicons.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: February 22, 2022
    Assignee: Bio-Rad Laboratories, Inc.
    Inventors: Jonathan William Larson, Qun Zhong, Darren Roy Link
  • Publication number: 20200225129
    Abstract: The invention provides methods for assessing one or more predetermined characteristics or properties of a microfluidic droplet within a microfluidic channel, and regulating one or more fluid flow rates within that channel to selectively alter the predetermined microdroplet characteristic or property using a feedback control.
    Type: Application
    Filed: January 2, 2020
    Publication date: July 16, 2020
    Inventors: Benjamin Miller, Brian Hutchison, Andrew Wilson, Jonathan William Larson, Qun Zhong, Yevgeny Yurkovetsky, Darren Roy Link, Mark Weary
  • Patent number: 10527529
    Abstract: The invention provides methods for assessing one or more predetermined characteristics or properties of a microfluidic droplet within a microfluidic channel, and regulating one or more fluid flow rates within that channel to selectively alter the predetermined microdroplet characteristic or property using a feedback control.
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: January 7, 2020
    Assignee: Bio-Rad Laboratories, Inc.
    Inventors: Benjamin J. Miller, Brian Hutchison, Andrew Wilson, Jonathan William Larson, Qun Zhong, Yevgeny Yurkovetsky, Darren Roy Link, Mark Weary
  • Publication number: 20200002748
    Abstract: The invention generally relates to methods and systems for manipulating droplet size. In certain aspects, the invention provides methods for manipulating droplet size that include forming droplets of aqueous fluid surrounded by an immiscible carrier fluid, and manipulating droplet size during the forming step by adjusting pressure exerted on the aqueous fluid or the carrier fluid.
    Type: Application
    Filed: September 10, 2019
    Publication date: January 2, 2020
    Inventors: Benjamin J. Miller, Qun Zhong, Darren Roy Link
  • Patent number: 10428369
    Abstract: The invention generally relates to methods and systems for manipulating droplet size. In certain aspects, the invention provides methods for manipulating droplet size that include forming droplets of aqueous fluid surrounded by an immiscible carrier fluid, and manipulating droplet size during the forming step by adjusting pressure exerted on the aqueous fluid or the carrier fluid.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: October 1, 2019
    Assignee: Bio-Rad Laboratories, Inc.
    Inventors: Benjamin J. Miller, Qun Zhong, Darren Roy Link
  • Publication number: 20190210016
    Abstract: A fluidic chip for detecting an analyte is provided, which comprises (a) at least one device comprising (i) a fluid inlet and (ii) at least one fluid transport channel that passes through a detection region, wherein (1) the at least one fluid transport channel has varying cross-sectional area as a function of position along the channel length and/or (2) the device comprises two or more fluid transport channels configured with two or more different cross-sectional areas; and (b) at least one fluid outlet, wherein the device provides for transport of single molecules across the detection region at a desired duty cycle by (1) allowing for detection of an analyte at a different position along the channel length based on the desired cross-sectional area and/or (2) allowing for detection of an analyte in a specific channel configured with the desired cross-sectional area. This application also provides for method of optimizing duty cycle using fluidic chips.
    Type: Application
    Filed: January 3, 2019
    Publication date: July 11, 2019
    Inventors: Qun ZHONG, Jeff KROGMEIER, Andrew GOLDEN, Samrudhi SHARMA, Laurent MENARD, Andrew WATSON, Oscar MCCRATE, Jun ZHOU, Rachel ROWELL
  • Publication number: 20180363050
    Abstract: Described herein are microparticles each comprising a plurality of bound biological molecules. Further described herein is a plurality of microdroplets each comprising one or more primer vehicles. Methods of making and using these microdroplets are also reported. An exemplary microparticle is of Formula (I).
    Type: Application
    Filed: December 7, 2016
    Publication date: December 20, 2018
    Inventors: Brian Hutchison, Darren R. Link, Zuwei Ma, Qun Zhong, Aisling Steele
  • Publication number: 20180057863
    Abstract: The invention generally relates to droplet based digital PCR and methods for analyzing a target nucleic acid using the same. In certain embodiments, methods of the invention involve forming sample droplets containing, on average, a single target nucleic acid, amplifying the target in the droplets, excluding droplets containing amplicon from the target and amplicon from a variant of the target, and analyzing target amplicons.
    Type: Application
    Filed: August 28, 2017
    Publication date: March 1, 2018
    Inventors: Jonathan William Larson, Qun Zhong, Darren Roy Link
  • Publication number: 20170336306
    Abstract: The invention provides methods for assessing one or more predetermined characteristics or properties of a microfluidic droplet within a microfluidic channel, and regulating one or more fluid flow rates within that channel to selectively alter the predetermined microdroplet characteristic or property using a feedback control.
    Type: Application
    Filed: August 10, 2017
    Publication date: November 23, 2017
    Inventors: Benjamin J. Miller, Brian Hutchison, Andrew Wilson, Jonathan William Larson, Qun Zhong, Yevgeny Yurkovetsky, Darren Roy Link, Mark Weary
  • Patent number: 9745617
    Abstract: The invention generally relates to droplet based digital PCR and methods for analyzing a target nucleic acid using the same. In certain embodiments, methods of the invention involve forming sample droplets containing, on average, a single target nucleic acid, amplifying the target in the droplets, excluding droplets containing amplicon from the target and amplicon from a variant of the target, and analyzing target amplicons.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: August 29, 2017
    Assignee: Raindance Technologies, Inc.
    Inventors: Jonathan William Larson, Qun Zhong, Darren R. Link
  • Patent number: 9733168
    Abstract: The invention provides methods for assessing one or more predetermined characteristics or properties of a microfluidic droplet within a microfluidic channel, and regulating one or more fluid flow rates within that channel to selectively alter the predetermined microdroplet characteristic or property using a feedback control.
    Type: Grant
    Filed: March 28, 2016
    Date of Patent: August 15, 2017
    Assignee: Raindance Technologies, Inc.
    Inventors: Benjamin Miller, Brian Hutchison, Andrew Wilson, Jonathan William Larson, Qun Zhong, Yevgeny Yurkovetsky, Darren Link, Mark Weary
  • Publication number: 20160281140
    Abstract: The invention generally relates to methods and systems for manipulating droplet size. In certain aspects, the invention provides methods for manipulating droplet size that include forming droplets of aqueous fluid surrounded by an immiscible carrier fluid, and manipulating droplet size during the forming step by adjusting pressure exerted on the aqueous fluid or the carrier fluid.
    Type: Application
    Filed: June 8, 2016
    Publication date: September 29, 2016
    Inventors: Benjamin J. Miller, Qun Zhong, Darren Roy Link