Patents by Inventor Ian Russell Mitchell

Ian Russell Mitchell 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).

  • Forward and reverse scanning for a beam instrument
    Patent number: 8735807
    Abstract: A quadrupole mass spectrometer alternates between increasing mass and decreasing mass scans for the purpose of decreasing inter-scan delays. By alternating increasing and decreasing mass scans, the next scan starts where the last scan ended reducing the settling time required. Backsteps may be eliminated by scanning the RF and DC non-linearly.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: May 27, 2014
    Assignee: Thermo Finnigan LLC
    Inventors: Ian Russell Mitchell, Scott T. Quarmby, Daniel R. Benkman
  • Forward and Reverse Scanning for a Beam Instrument
    Publication number: 20110315866
    Abstract: A quadrupole mass spectrometer alternates between increasing mass and decreasing mass scans for the purpose of decreasing inter-scan delays. By alternating increasing and decreasing mass scans, the next scan starts where the last scan ended reducing the settling time required. Backsteps may be eliminated by scanning the RF and DC non-linearly.
    Type: Application
    Filed: June 29, 2010
    Publication date: December 29, 2011
    Inventors: Ian Russell Mitchell, Scott T. Quarmby, Daniel R. Benkman