Patents by Inventor Fenglei Du

Fenglei Du 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: 20210090252
    Abstract: Methods are provided for the automated detection of micro-objects in a microfluidic device. In addition, methods are provided for repositioning micro-objects in a microfluidic device. In addition, methods are provided for separating micro-objects in a spatial region of the microfluidic device.
    Type: Application
    Filed: October 5, 2020
    Publication date: March 25, 2021
    Inventors: Fenglei Du, Paul M. Lundquist, John A. Tenney, Troy A. Lionberger
  • Patent number: 10832404
    Abstract: Methods are provided for the automated detection of micro-objects in a microfluidic device. In addition, methods are provided for repositioning micro-objects in a microfluidic device. In addition, methods are provided for separating micro-objects in a spatial region of the microfluidic device.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: November 10, 2020
    Assignee: Berkeley Lights, Inc.
    Inventors: Fenglei Du, Paul M. Lundquist, John A. Tenney, Troy A. Lionberger
  • Patent number: 10578630
    Abstract: Methods are provided for the automated detection of assay-positive assay areas in a microfluidic device. When assays are performed in a microfluidic device, the configuration of the microfluidic circuit and its constituent circuit elements can determine where the reagents/analytes used in the assay can be located within the microfluidic circuit. Methods are provided for automatic identification of the size and shape of the assay areas based on a number of parameters which may include type of assay involved, shape and dimensions of microfluidic circuit elements, velocity and physical characteristics of the fluidic medium within the microfluidic circuit, physical/chemical properties of the analytes/reagents, and/or the number of cells being assayed.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: March 3, 2020
    Assignee: Berkeley Lights, Inc.
    Inventor: Fenglei Du
  • Publication number: 20190172196
    Abstract: Methods are provided for the automated detection of micro-objects in a microfluidic device. In addition, methods are provided for repositioning micro-objects in a microfluidic device. In addition, methods are provided for separating micro-objects in a spatial region of the microfluidic device.
    Type: Application
    Filed: June 5, 2018
    Publication date: June 6, 2019
    Inventors: Fenglei Du, Paul M. Lundquist, John A. Tenney, Troy A. Lionberger
  • Patent number: 9996920
    Abstract: Methods are provided for the automated detection of micro-objects in a microfluidic device. In addition, methods are provided for repositioning micro-objects in a microfluidic device. In addition, methods are provided for separating micro-objects in a spatial region of the microfluidic device.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: June 12, 2018
    Assignee: Berkeley Lights, Inc.
    Inventors: Fenglei Du, Paul M. Lundquist, John A. Tenney, Troy A. Lionberger
  • Publication number: 20160171686
    Abstract: Methods are provided for the automated detection of micro-objects in a microfluidic device. In addition, methods are provided for repositioning micro-objects in a microfluidic device. In addition, methods are provided for separating micro-objects in a spatial region of the microfluidic device.
    Type: Application
    Filed: December 8, 2015
    Publication date: June 16, 2016
    Inventors: Fenglei Du, Paul M. Lundquist, John A. Tenney, Troy A. Lionberger
  • Publication number: 20160160259
    Abstract: Methods are provided for the automated detection of assay-positive assay areas in a microfluidic device. When assays are performed in a microfluidic device, the configuration of the microfluidic circuit and its constituent circuit elements can determine where the reagents/analytes used in the assay can be located within the microfluidic circuit. Methods are provided for automatic identification of the size and shape of the assay areas based on a number of parameters which may include type of assay involved, shape and dimensions of microfluidic circuit elements, velocity and physical characteristics of the fluidic medium within the microfluidic circuit, physical/chemical properties of the analytes/reagents, and/or the number of cells being assayed.
    Type: Application
    Filed: December 9, 2015
    Publication date: June 9, 2016
    Inventor: Fenglei Du
  • Patent number: 8781779
    Abstract: An improved method and apparatus for automatically aligning probe pins to the test or bond pads of semiconductor devices under changing conditions. In at least one embodiment, a dynamic model is used to predict an impact of changing conditions to wafer probing process. This reduces the need for frequent measurements and calibrations during probing and testing, thereby increasing the number of dice that can be probed and tested in a given period of time and increasing the accuracy of probing at the same time. Embodiments of the present invention also make it possible to adjust positions of probe pins and pads in response to the changing conditions while they are in contact with each other.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: July 15, 2014
    Assignee: FormFactor, Inc.
    Inventors: Richard James Casler, Jr., Fenglei Du, Stephen Craig Fullerton
  • Patent number: 8311758
    Abstract: An improved method and apparatus for automatically aligning probe pins to the test or bond pads of semiconductor devices under changing conditions. In at least one embodiment, a dynamic model is used to predict an impact of changing conditions to wafer probing process. This reduces the need for frequent measurements and calibrations during probing and testing, thereby increasing the number of dice that can be probed and tested in a given period of time and increasing the accuracy of probing at the same time. Embodiments of the present invention also make it possible to adjust positions of probe pins and pads in response to the changing conditions while they are in contact with each other.
    Type: Grant
    Filed: January 18, 2006
    Date of Patent: November 13, 2012
    Assignee: FormFactor, Inc.
    Inventors: Richard James Casler, Jr., Fenglei Du, Stephen Craig Fullerton
  • Patent number: 7653302
    Abstract: Personal data services, such as a set of Web services, are enabled that allow a user to enter personal metadata information, e.g., about likely people and/or events to be targets of a camera capture event. Then, when a user's computing device acquires such metadata, e.g., via embedded Web services software, an intelligent user interface allows the user to enter whether any of such personal metadata information pertains to any personal data, such as a video, an audio file or an image, which is captured by the user's computing device. The personal data including the metadata information can be automatically uploaded via one or more wired and/or wireless networks to a device that hosts a personal data service, which stores the personal data and associated metadata, providing for effective means to access and manage a user's personal data store.
    Type: Grant
    Filed: March 22, 2006
    Date of Patent: January 26, 2010
    Assignee: Syabas Technology Inc.
    Inventors: Alexander John Limberis, Fenglei Du, David Nathan Blado, Hans Robert Guntren
  • Publication number: 20070164770
    Abstract: An improved method and apparatus for automatically aligning probe pins to the test or bond pads of semiconductor devices under changing conditions. In at least one embodiment, a dynamic model is used to predict an impact of changing conditions to wafer probing process. This reduces the need for frequent measurements and calibrations during probing and testing, thereby increasing the number of dice that can be probed and tested in a given period of time and increasing the accuracy of probing at the same time. Embodiments of the present invention also make it possible to adjust positions of probe pins and pads in response to the changing conditions while they are in contact with each other.
    Type: Application
    Filed: January 18, 2006
    Publication date: July 19, 2007
    Inventors: Richard Casler, Fenglei Du, Stephen Fullerton
  • Publication number: 20060221190
    Abstract: Personal data services, such as a set of Web services, are enabled that allow a user to enter personal metadata information, e.g., about likely people and/or events to be targets of a camera capture event. Then, when a user's computing device acquires such metadata, e.g., via embedded Web services software, an intelligent user interface allows the user to enter whether any of such personal metadata information pertains to any personal data, such as a video, an audio file or an image, which is captured by the user's computing device. The personal data including the metadata information can be automatically uploaded via one or more wired and/or wireless networks to a device that hosts a personal data service, which stores the personal data and associated metadata, providing for effective means to access and manage a user's personal data store.
    Type: Application
    Filed: March 22, 2006
    Publication date: October 5, 2006
    Applicant: Lifebits, Inc.
    Inventors: Alexander Limberis, Fenglei Du, David Blado, Hans Guntren