Patents by Inventor James L. Burch

James L. Burch 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 composition analyzer with increased dynamic range
    Patent number: 7679051
    Abstract: A system and method for separating ions in an ion mixture, such as a plasma in space. The ion mixture enters an electrostatic analyzer, whose ion path has at least two sections. A first section applies a DC voltage to the ions, and a next section applies an RF frequency voltage to the ions. Appropriate DC and RF voltages are applied, such that at least a portion of the lower mass ions are absorbed into the RF section of the analyzer. The heaver ions are transmitted out of the ion path and are readily available for further analysis.
    Type: Grant
    Filed: May 17, 2006
    Date of Patent: March 16, 2010
    Assignee: Southwest Research Institute
    Inventor: James L. Burch
  • Ion Composition Analyzer with Increased Dynamic Range
    Publication number: 20080061229
    Abstract: A system and method for separating ions in an ion mixture, such as a plasma in space. The ion mixture enters an electrostatic analyzer, whose ion path has at least two sections. A first section applies a DC voltage to the ions, and a next section applies an RF frequency voltage to the ions. Appropriate DC and RF voltages are applied, such that at least a portion of the lower mass ions are absorbed into the RF section of the analyzer. The heaver ions are transmitted out of the ion path and are readily available for further analysis.
    Type: Application
    Filed: May 17, 2006
    Publication date: March 13, 2008
    Inventor: James L. Burch