Patents by Inventor David R. Crosley

David R. Crosley 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).

  • Direct liquid injection inlet to a laser photoionization apparatus
    Patent number: 7095016
    Abstract: A method and apparatus are provided for analyzing an analyte at low concentration in a liquid sample by photoionization and mass spectrometry. An inlet system is provided for direct injection of the liquid sample using a capillary tube. The method and apparatus allow for 20 to 2000-fold improvement of the lower detection limit of an analyte in a liquid sample compared to a conventional liquid chromatography/mass spectrometer apparatus.
    Type: Grant
    Filed: April 29, 2004
    Date of Patent: August 22, 2006
    Assignee: SRI International
    Inventors: Harald Oser, Michael J. Coggiola, Steven E. Young, David R. Crosley
  • Direct liquid injection inlet to a laser photoionization apparatus
    Publication number: 20040222373
    Abstract: A method and apparatus are provided for analyzing an analyte at low concentration in a liquid sample by photoionization and mass spectrometry. An inlet system is provided for direct injection of the liquid sample using a capillary tube. The method and apparatus allow for 20 to 2000-fold improvement of the lower detection limit of an analyte in a liquid sample compared to a conventional liquid chromatography/mass spectrometer apparatus.
    Type: Application
    Filed: April 29, 2004
    Publication date: November 11, 2004
    Applicant: SRI International
    Inventors: Harald Oser, Michael J. Coggiola, Steven E. Young, David R. Crosley