Patents Examined by Jack I. Berrman
  • Mobility spectrometer
    Patent number: 6897437
    Abstract: The present invention relates to an improved ion mobility spectrometer and method for the analysis of chemical samples. The improvements are realized in the optimization of resolution and sensitivity. Increases in sensitivity are realized by preserving a narrow spatial distribution of migrating ions through the use of periodic/hyperbolic field focusing. Additionally, novel combinations and configurations of components are used to simultaneously maintain a well defined ion packet and preserve sample throughput to the detector.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: May 24, 2005
    Assignee: Ionwerks
    Inventors: Katrin Fuhrer, Kent J. Gillig, Marc Gonin, David H. Russell, John A. Schultz