Patents by Inventor Craig S. Leasure

Craig S. Leasure 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).

  • Ion mobility spectrometer
    Patent number: 4777363
    Abstract: An atmospheric ion mobility spectrometer including a spectrometer tube having a shutter grid defining a reaction region and a drift chamber. The tube includes an inlet at the end of the drift chamber opposite the shutter grid in communication with ambient air that allows the air to be introduced into the tube. The air acts as the sample, carrier gas and drift gases within the IMS.
    Type: Grant
    Filed: August 29, 1986
    Date of Patent: October 11, 1988
    Assignee: Research Corporation Technologies, Inc.
    Inventors: Gary A. Eiceman, Craig S. Leasure