Patents Represented by Attorney, Agent or Law Firm Diederiks & Whielaw, PLC
  • Mass spectrometer
    Patent number: 6762404
    Abstract: A mass spectrometer includes a fragmentation cell having a plurality of ring or plate-like electrodes with apertures through which ions are transmitted. An axial DC gradient is preferably maintained along at least a portion of the length of the fragmentation cell in order to improve the transit time of ions through the device.
    Type: Grant
    Filed: June 25, 2002
    Date of Patent: July 13, 2004
    Assignee: Micromass UK Limited
    Inventors: Robert Harold Bateman, Kevin Giles, Steve Pringle