Patents by Inventor Weiyan Gong

Weiyan Gong 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).

  • Coaxial illumination of coulter aperture in full function hematology analyzer
    Patent number: 8743352
    Abstract: A method for directly illuminating a Coulter aperture so light scattering can be incorporated into the classical Coulter aperture and 3-diff blood analyzer to realize full functional hematology analyzer by providing a flow chamber which is separated into two portions by a plate having a Coulter aperture; and using a light source to directly coaxial illuminate the Coulter aperture wherein the illuminating beam propagates in the same direction as the axis of the Coulter aperture and the cell's moving direction.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: June 3, 2014
    Inventor: Weiyan Gong
  • Coaxial Illumination Of Coulter Aperture In Full Function Hematology Analyzer
    Publication number: 20110254533
    Abstract: A method for directly illuminating a Coulter aperture so light scattering can be incorporated into the classical Coulter aperture and 3-diff blood analyzer to realize full functional hematology analyzer by providing a flow chamber which is separated into two portions by a plate having a Coulter aperture; and using a light source to directly coaxial illuminate the Coulter aperture wherein the illuminating beam propagates in the same direction as the axis of the Coulter aperture and the cell's moving direction.
    Type: Application
    Filed: August 20, 2010
    Publication date: October 20, 2011
    Inventor: Weiyan Gong
  • Apparatus and method for determination of individual red blood cell shape
    Patent number: 5798827
    Abstract: The present invention provides an apparatus and method to determine individual red blood cell shape within a flow cytometric aperture. Cell shape is determined by measuring the asymmetry of a light scatter pattern produced by laser illumination of the cell within the aperture by light scatter detectors which collect light from specific angular regions of light scatter, and analyzing the asymmetry of the light scatter patters to determine the individual red blood cell shape. Embodiments of the invention further provide for the determination of red blood cell shape by measuring the asymmetry of a light scatter pattern and measuring electrical resistance of the red blood cell.
    Type: Grant
    Filed: November 26, 1996
    Date of Patent: August 25, 1998
    Assignee: Coulter International Corp.
    Inventors: Robert S. Frank, James L. Wyatt, Weiyan Gong, Carlos M. Rodriguez, Robert C. Leif