Patents by Inventor Virendra O. Shah

Virendra O. Shah 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).

  • Control particles for cell counting and instrument linearity
    Patent number: 6350619
    Abstract: This invention describes methods and kits for determining instrument linearity of a flow cytometer and is particularly useful as a control particle for use in conjunction with absolute cell counting methods. The particle used in the practice of this invention comprises a small fluorescent bead.
    Type: Grant
    Filed: March 4, 1994
    Date of Patent: February 26, 2002
    Assignee: Becton, Dickinson and Company
    Inventors: Thomas J. Mercolino, Virendra O. Shah
  • Method to determine the composition of bone marrow samples
    Patent number: 5137809
    Abstract: A method and kit for identification of the lineages and stages of hematopoietic cells in a sample wherein the cells are treated with labeled monoclonal antibodies selected to distinguish between each lineage and maturational stages within each lineage.
    Type: Grant
    Filed: July 19, 1990
    Date of Patent: August 11, 1992
    Assignee: Becton, Dickinson and Company
    Inventors: Michael R. Loken, Curt I. Civin, Virendra O. Shah
  • Method for discriminating between intact and damaged cells in a sample
    Patent number: 5057413
    Abstract: A method is disclosed for the discrimination between intact and damaged cells in a sample, and more particularly, the method uses a vital nucleic acid dye to selectively stain intact versus damaged cells which then may be counted and sorted by flow cytometry means. The method also may be used in conjunction with fluorescently labelled monoclonal antibodies to simultaneously identify cellular antigens.
    Type: Grant
    Filed: June 13, 1988
    Date of Patent: October 15, 1991
    Assignee: Becton, Dickinson and Company
    Inventors: Leon W. M. M. Terstappen, Michael R. Loken, Virendra O. Shah