Patents by Inventor Lemoyne B. Westover

Lemoyne B. Westover 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).

  • Capillary membrane interface for a mass spectrometer
    Patent number: 4791292
    Abstract: A device for introducing a sample into a mass spectrometer which generally comprises a probe which is connected to the mass spectrometer and a semipermeable capillary tube connected at the end of the probe. The probe includes conduit passageways for permitting bidirectional fluid flow through the probe, and the capillary tube is connected to the end of the probe so as to permit the flow of a fluid containing the sample to be analyzed through the probe and the capillary tube. This fluid flow through the capillary tube will enable at least a portion of the sample to be transferred into the mass spectrometer via diffusion through the capillary tube.
    Type: Grant
    Filed: April 24, 1986
    Date of Patent: December 13, 1988
    Assignee: The Dow Chemical Company
    Inventors: Robert G. Cooks, Mark E. Bier, Jennifer S. Brodbelt, James C. Tou, Lemoyne B. Westover