Patents by Inventor Gerald Dupre

Gerald Dupre 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 of producing molecular profiles of isoparaffins by low emitter current field ionization mass spectrometry
    Publication number: 20070181796
    Abstract: The present invention is devoted to an analytical method for directly determining carbon number and molecular weight distributions of isoparaffin mixtures. The analytical means uses low in-scan emitter-current field-ionization mass spectroscopy to substantially reduced or eliminated molecular ion fragmentation for isoparaffins, which allows direct measurement of isoparaffin molecular ions for their distributions. The analytical means is capable of directly characterizing isobutane to C50+ isoparaffins, covering naphtha to gas oil ranges.
    Type: Application
    Filed: February 6, 2007
    Publication date: August 9, 2007
    Inventors: Chang Hsu, Gary Dechert, Haven Aldrich, Gerald Dupre