Patents by Inventor Lingjie Wei

Lingjie Wei 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: 12235201
    Abstract: Aspects of the present disclosure include methods for determining baseline noise of a photodetector (e.g., in a light detection system of a particle analyzer). Methods according to certain embodiments include irradiating a sample having particles in a flow stream, detecting light with the photodetector from the irradiated flow stream, generating data signals from the detected light and calculating a moving average mean squared error of the generated data signals to determine the baseline of the photodetector. Systems (e.g., particle analyzers) having a light source and a light detection system that includes a photodetector for practicing the subject methods are also described. Integrated circuits and non-transitory computer readable storage medium are also provided.
    Type: Grant
    Filed: August 16, 2021
    Date of Patent: February 25, 2025
    Assignee: BECTON, DICKINSON AND COMPANY
    Inventors: Peter Mage, Lingjie Wei, Peter Johnson, David A. Roberts, Keegan Owsley
  • Publication number: 20240402065
    Abstract: Droplet sorting modules for sorting droplets of a flow stream are described. Droplet sorting modules according to certain embodiments include a plurality of droplet sort decision units and a processor with memory operably coupled to the processor, where the memory includes instructions stored thereon, which when executed by the processor, cause the processor to determine an optimal droplet sort decision unit from the plurality of sort decision units for sorting each droplet of the flow stream. Particle (e.g., cells) sorting systems and methods for sorting droplets of a flow stream are also described. Kits having one or more of the subject droplet sorting modules are also provided.
    Type: Application
    Filed: August 14, 2024
    Publication date: December 5, 2024
    Inventors: Peter Johnson, Lingjie Wei, Wilson On
  • Patent number: 12098994
    Abstract: Droplet sorting modules for sorting droplets of a flow stream are described. Droplet sorting modules according to certain embodiments include a plurality of droplet sort decision units and a processor with memory operably coupled to the processor, where the memory includes instructions stored thereon, which when executed by the processor, cause the processor to determine an optimal droplet sort decision unit from the plurality of sort decision units for sorting each droplet of the flow stream. Particle (e.g., cells) sorting systems and methods for sorting droplets of a flow stream are also described. Kits having one or more of the subject droplet sorting modules are also provided.
    Type: Grant
    Filed: July 7, 2021
    Date of Patent: September 24, 2024
    Assignee: BECTON, DICKINSON AND COMPANY
    Inventors: Peter Johnson, Lingjie Wei, Wilson On
  • Publication number: 20240280465
    Abstract: Aspects of the present disclosure include methods for adjusting a particle classification index in response to one or more saturated data signals from light detected from particles in a flow stream. Methods according to certain embodiments include detecting light from particles in a flow stream; generating a plurality of data signals from the detected light; identifying one or more saturated data signals; generating a saturated signal index that corresponds to the identified saturated data signals; and applying the saturated signal index to a particle classification index to generate an adjusted particle classification index. In some embodiments, methods include determining one or more parameters of a particle (e.g., for use in a particle sort decision) by calculating an adjusted spectral unmixing matrix for the fluorescence of the particle that excludes one or more saturated data signals. Systems and integrated circuit devices (e.g.
    Type: Application
    Filed: February 6, 2024
    Publication date: August 22, 2024
    Inventors: David A. Roberts, Lingjie Wei, Peter Ludington Mage
  • Patent number: 11927522
    Abstract: Aspects of the present disclosure include methods for adjusting a particle classification index in response to one or more saturated data signals from light detected from particles in a flow stream. Methods according to certain embodiments include detecting light from particles in a flow stream; generating a plurality of data signals from the detected light; identifying one or more saturated data signals; generating a saturated signal index that corresponds to the identified saturated data signals; and applying the saturated signal index to a particle classification index to generate an adjusted particle classification index. In some embodiments, methods include determining one or more parameters of a particle (e.g., for use in a particle sort decision) by calculating an adjusted spectral unmixing matrix for the fluorescence of the particle that excludes one or more saturated data signals. Systems and integrated circuit devices (e.g.
    Type: Grant
    Filed: January 28, 2021
    Date of Patent: March 12, 2024
    Assignee: BECTON, DICKINSON AND COMPANY
    Inventors: David A. Roberts, Lingjie Wei, Peter Mage
  • Patent number: 11662297
    Abstract: Aspects of the present disclosure include methods for flow cytometrically sorting a sample with particles, such as cells, based on order of identification. Methods according to certain embodiments include introducing the sample into a flow cytometer; flowing the introduced sample in a flow stream; irradiating the sample in the flow stream with a light source; detecting light from cells in the sample flowing in the flow stream; identifying phenotypes of cells in the sample flowing in the flow stream based on one or more data signals generated from the detected light; and dynamically sorting into partitions cells of the sample that have a phenotype of a collection of predetermined phenotypes based on order of identification. Systems for practicing the subject methods are also provided. Non-transitory computer readable storage mediums are also described.
    Type: Grant
    Filed: April 9, 2021
    Date of Patent: May 30, 2023
    Assignee: BECTON, DICKINSON AND COMPANY
    Inventors: David Alexander Roberts, Lingjie Wei, Peter Mage, Keegan Owsley
  • Publication number: 20220091017
    Abstract: Aspects of the present disclosure include methods for determining baseline noise of a photodetector (e.g., in a light detection system of a particle analyzer). Methods according to certain embodiments include irradiating a sample having particles in a flow stream, detecting light with the photodetector from the irradiated flow stream, generating data signals from the detected light and calculating a moving average mean squared error of the generated data signals to determine the baseline of the photodetector. Systems (e.g., particle analyzers) having a light source and a light detection system that includes a photodetector for practicing the subject methods are also described. Integrated circuits and non-transitory computer readable storage medium are also provided.
    Type: Application
    Filed: August 16, 2021
    Publication date: March 24, 2022
    Inventors: Peter Mage, Lingjie Wei, Peter Johnson, David A. Roberts, Keegan Owsley
  • Publication number: 20210333193
    Abstract: Droplet sorting modules for sorting droplets of a flow stream are described. Droplet sorting modules according to certain embodiments include a plurality of droplet sort decision units and a processor with memory operably coupled to the processor, where the memory includes instructions stored thereon, which when executed by the processor, cause the processor to determine an optimal droplet sort decision unit from the plurality of sort decision units for sorting each droplet of the flow stream. Particle (e.g., cells) sorting systems and methods for sorting droplets of a flow stream are also described. Kits having one or more of the subject droplet sorting modules are also provided.
    Type: Application
    Filed: July 7, 2021
    Publication date: October 28, 2021
    Inventors: Peter Johnson, Lingjie Wei, Wilson On
  • Publication number: 20210333192
    Abstract: Aspects of the present disclosure include methods for flow cytometrically sorting a sample with particles, such as cells, based on order of identification. Methods according to certain embodiments include introducing the sample into a flow cytometer; flowing the introduced sample in a flow stream; irradiating the sample in the flow stream with a light source; detecting light from cells in the sample flowing in the flow stream; identifying phenotypes of cells in the sample flowing in the flow stream based on one or more data signals generated from the detected light; and dynamically sorting into partitions cells of the sample that have a phenotype of a collection of predetermined phenotypes based on order of identification. Systems for practicing the subject methods are also provided. Non-transitory computer readable storage mediums are also described.
    Type: Application
    Filed: April 9, 2021
    Publication date: October 28, 2021
    Inventors: David Alexander Roberts, Lingjie Wei, Peter Mage, Keegan Owsley
  • Publication number: 20210270718
    Abstract: Aspects of the present disclosure include methods for adjusting a particle classification index in response to one or more saturated data signals from light detected from particles in a flow stream. Methods according to certain embodiments include detecting light from particles in a flow stream; generating a plurality of data signals from the detected light; identifying one or more saturated data signals; generating a saturated signal index that corresponds to the identified saturated data signals; and applying the saturated signal index to a particle classification index to generate an adjusted particle classification index. In some embodiments, methods include determining one or more parameters of a particle (e.g., for use in a particle sort decision) by calculating an adjusted spectral unmixing matrix for the fluorescence of the particle that excludes one or more saturated data signals. Systems and integrated circuit devices (e.g.
    Type: Application
    Filed: January 28, 2021
    Publication date: September 2, 2021
    Inventors: David A. Roberts, Lingjie Wei, Peter Mage
  • Patent number: 11085868
    Abstract: Droplet sorting modules for sorting droplets of a flow stream are described. Droplet sorting modules according to certain embodiments include a plurality of droplet sort decision units and a processor with memory operably coupled to the processor, where the memory includes instructions stored thereon, which when executed by the processor, cause the processor to determine an optimal droplet sort decision unit from the plurality of sort decision units for sorting each droplet of the flow stream. Particle (e.g., cells) sorting systems and methods for sorting droplets of a flow stream are also described. Kits having one or more of the subject droplet sorting modules are also provided.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: August 10, 2021
    Assignee: BECTON, DICKINSON AND COMPANY
    Inventors: Peter Johnson, Lingjie Wei, Wilson On
  • Publication number: 20200256781
    Abstract: Droplet sorting modules for sorting droplets of a flow stream are described. Droplet sorting modules according to certain embodiments include a plurality of droplet sort decision units and a processor with memory operably coupled to the processor, where the memory includes instructions stored thereon, which when executed by the processor, cause the processor to determine an optimal droplet sort decision unit from the plurality of sort decision units for sorting each droplet of the flow stream. Particle (e.g., cells) sorting systems and methods for sorting droplets of a flow stream are also described. Kits having one or more of the subject droplet sorting modules are also provided.
    Type: Application
    Filed: December 23, 2019
    Publication date: August 13, 2020
    Inventors: Peter Johnson, Lingjie Wei, Wilson On