Patents by Inventor Martin C. Cohen

Martin C. Cohen 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 to remove the spectral components of illumination energy from a sample spectrum without the use of optical barrier filters, and apparatus for the same
    Patent number: 9435687
    Abstract: The present invention is a method of obtaining and isolating sample spectra from a wide wavelength illumination source without the use of filters. The method obtains the combined sample and illumination spectra of a sample and removes the illumination spectrum from the combined spectrum. This is accomplished by obtaining both the combined sample/illumination spectrum and the illumination spectrum separately at the same time and under the same environmental and instrument conditions. The illumination spectrum is then subtracted, wavelength by wavelength from the combined sample/illumination spectrum, leaving the pure sample spectrum which may a single spectrum or combination of two or more spectra from different types and/or compounds in the sample.
    Type: Grant
    Filed: October 6, 2014
    Date of Patent: September 6, 2016
    Assignee: CENTER FOR QUANTITATIVE CYTOMETRY
    Inventors: Abraham Schwartz, Martin C. Cohen, Peter Ingram