Patents by Inventor Gary C. Salzman

Gary C. Salzman 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: 4884886
    Abstract: An apparatus and method for making multiparameter light scattering measurements from suspensions of biological particles is described. Fourteen of the sixteen Mueller matrix elements describing the particles under investigation can be substantially individually determined as a function of scattering angle and probing radiations wavelength, eight elements simultaneously for each of two apparatus configurations using an apparatus which incluees, in its simplest form, two polarization modulators each operating at a chosen frequency, one polarizer, a source of monochromatic electromagnetic radiation, a detector sensitive to the wavelength of radiation employed, eight phase-sensitive detectors, and appropriate electronics. A database of known biological particle suspensions can be assembled, and unknown samples can be quickly identified once measurements are performed on it according to the teachings of the subject invention, and a comparison is made with the database.
    Type: Grant
    Filed: January 26, 1989
    Date of Patent: December 5, 1989
    Assignee: The United States of America as represented by the Department of Energy
    Inventors: Gary C. Salzman, Charles T. Gregg, W. Kevin Grace, Richard D. Hiebert
  • Patent number: 4796995
    Abstract: The disclosure is directed to organic particle sorting and identification. High frequency pulses of circularly polarized light, alternating between left and right, intersect a fast moving stream of organic particles. Circular intensity differential scattering and linear intensity differential scattering are monitored to uniquely identify a variety of organic particles.
    Type: Grant
    Filed: September 2, 1987
    Date of Patent: January 10, 1989
    Assignee: The United States Department of Energy
    Inventors: Gary C. Salzman, Robert H. Kupperman
  • Patent number: 4200802
    Abstract: The disclosure is directed to a cell analysis apparatus incorporating a paraboloidal cavity for maximum utilization for improved cell characteristic monitoring.
    Type: Grant
    Filed: March 28, 1979
    Date of Patent: April 29, 1980
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Gary C. Salzman, Mary J. Skogen Hagenson
  • Patent number: 3946239
    Abstract: The disclosure relates to a system incorporating an ellipsoidal flow chamber having light reflective walls for low level light detection in practicing cellular analysis. The system increases signal-to-noise ratio by a factor of ten over prior art systems. In operation, laser light passes through the primary focus of the ellipsoid. A controlled flow of cells simultaneously passes through this focus so that the laser light impinges on the cells and is modulated by the cells. The reflective walls of the ellipsoid reflect the cell-modulated light to the secondary focus of the ellipsoid. A tapered light guide at the secondary focus picks up a substantial portion of modulated reflective light and directs it onto a light detector to produce a signal. The signal is processed to obtain the intensity distribution of the modulated light and hence sought after characteristics of the cells.
    Type: Grant
    Filed: January 24, 1975
    Date of Patent: March 23, 1976
    Assignee: The United States of America as represented by the United Energy Research and Development Administration
    Inventors: Gary C. Salzman, Paul F. Mullaney