Patents by Inventor James C. Bearden

James C. Bearden 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).

  • Method for flagging a sample
    Patent number: 8911669
    Abstract: A hematology analyzer is provided. In certain embodiments, the hematology analyzer comprises: a) a flow cell; b) a light source for directing light to the flow cell; c) a plurality of detectors for detecting a plurality of optical characteristics of a blood cell passing through the flow cell; and d) a data analysis workstation programmed to: i. enumerate test blood cells passing through the flow cell; and ii. flag a blood sample as containing lysis-resistant red blood cells or fragile white blood cells.
    Type: Grant
    Filed: August 24, 2009
    Date of Patent: December 16, 2014
    Assignee: Abbott Laboratories
    Inventors: Martin Krockenberger, Richard B. Bordenkircher, Diana G. Garrett, John G. Glazier, James C. Bearden, Bodo Roemer, Giacomo Vacca
  • Method for Flagging a Sample
    Publication number: 20110045525
    Abstract: A hematology analyzer is provided. In certain embodiments, the hematology analyzer comprises: a) a flow cell; b) a light source for directing light to the flow cell; c) a plurality of detectors for detecting a plurality of optical characteristics of a blood cell passing through the flow cell; and d) a data analysis workstation programmed to: i. enumerate test blood cells passing through the flow cell; and ii. flag a blood sample as containing lysis-resistant red blood cells or fragile white blood cells.
    Type: Application
    Filed: August 24, 2009
    Publication date: February 24, 2011
    Inventors: Martin Krockenberger, Richard B. Bordenkircher, Diana G. Garrett, John G. Glazier, James C. Bearden, Bodo Roemer, Giacomo Vacca
  • Optical method and apparatus for red blood cell differentiation on a cell-by-cell basis, and simultaneous analysis of white blood cell differentiation
    Patent number: 6630990
    Abstract: Methods and apparatus are disclosed for determining the volume, hemoglobin concentration, maturity and cell shape of mammalian red blood cells in a whole blood sample and simultaneously monitoring system standardization. Methods for distinguishing red blood cells from other cellular particles, prior to the red blood cell analysis are also disclosed. Red blood cells are passed through a beam of light in single file at a selected wavelength, obtaining an initial cytogram by means of the resultant magnitude of one light loss signal and one forward angle light scatter signal at a selected angular interval and a third side angle light scatter or two forward angle light scatter signals at a selected angular intervals and a third side-angle light scatter signal, projecting the cytogram, point by point, onto a pre-calibrated 3-dimensional surface containing grid lines of volume and hemoglobin concentration and determining accurate values of cell volume and hemoglobin concentration.
    Type: Grant
    Filed: June 5, 2001
    Date of Patent: October 7, 2003
    Assignee: Abbott Laboratories
    Inventors: Ronny van't Oever, Young Ran Kim, James C. Bearden, Jr., Marilou Z. Landayan
  • Optical method and apparatus for red blood cell differentiation on a cell-by-cell basis, and simultaneous analysis of white blood cell differentiation
    Publication number: 20030025896
    Abstract: Methods and apparatus are disclosed for determining the volume, hemoglobin concentration, maturity and cell shape of mammalian red blood cells in a sample and simultaneously monitoring system standardization.
    Type: Application
    Filed: June 5, 2001
    Publication date: February 6, 2003
    Inventors: Ronny van?apos;t Oever, Young Ran Kim, James C. Bearden, Marilou Z. Landayan