Patents by Inventor Megan Ellen McGuigan

Megan Ellen McGuigan 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).

  • Pulsed carrier gas flow modulation for selectivity enhancements with gas chromatography using series-coupled column ensembles
    Patent number: 6706535
    Abstract: A gas chromatography system having a computer-controlled venting valve system that delivers pressurized pulses to a column junction point of two series-coupled columns having different stationary-phase chemistries and a method of using the same. Each pressurized pulse causes a differential change in the carrier gas velocities in the two columns, which lasts for the duration of the pressurized pulse. Whereby, the pressurized pulse selectively increases the separation of a component pair that exhibits separation at the exit of the first column, but otherwise co-elutes from the column ensemble.
    Type: Grant
    Filed: January 22, 2002
    Date of Patent: March 16, 2004
    Assignee: The Regents of the University of Michigan
    Inventors: Richard Douglas Sacks, Tincuta Maria Veriotti, Megan Ellen McGuigan
  • Pulsed carrier gas flow modulation for selectivity enhancements with gas chroma tography using series-coupled ensembles
    Patent number: 6706534
    Abstract: A gas chromatography system having a computer-controlled pressure controller that delivers pressurized pulses to a column junction point of two series-coupled columns having different stationary-phase chemistries and a method of using the same. Each pressurized pulse causes a differential change in the carrier gas velocities in the two columns, which lasts for the duration of the pressurized pulse. Whereby, the pressurized pulse selectively increases the separation of a component pair that exhibits separation at the exit of the first column, but otherwise co-elutes from the column ensemble.
    Type: Grant
    Filed: December 10, 2001
    Date of Patent: March 16, 2004
    Assignee: The Regents of the University of Michigan
    Inventors: Richard Douglas Sacks, Tincuta Maria Veriotti, Megan Ellen McGuigan
  • Pulsed carrier gas flow modulation for selectivity enhancements with gas chromatography using series-coupled column ensembles
    Publication number: 20030108448
    Abstract: A gas chromatography system having a computer-controlled venting valve system that delivers pressurized pulses to a column junction point of two series-coupled columns having different stationary-phase chemistries and a method of using the same. Each pressurized pulse causes a differential change in the carrier gas velocities in the two columns, which lasts for the duration of the pressurized pulse. Whereby, the pressurized pulse selectively increases the separation of a component pair that exhibits separation at the exit of the first column, but otherwise co-elutes from the column ensemble.
    Type: Application
    Filed: May 23, 2002
    Publication date: June 12, 2003
    Inventors: Richard Douglas Sacks, Tincuta Maria Veriotti, Megan Ellen McGuigan, Joshua Jonathan Mark Whiting
  • Pulsed carrier gas flow modulation for selectivity enhancements with gas chromatography using series-coupled column ensembles
    Publication number: 20030106363
    Abstract: A gas chromatography system having a computer-controlled venting valve system that delivers pressurized pulses to a column junction point of two series-coupled columns having different stationary-phase chemistries and a method of using the same. Each pressurized pulse causes a differential change in the carrier gas velocities in the two columns, which lasts for the duration of the pressurized pulse. Whereby, the pressurized pulse selectively increases the separation of a component pair that exhibits separation at the exit of the first column, but otherwise co-elutes from the column ensemble.
    Type: Application
    Filed: January 22, 2002
    Publication date: June 12, 2003
    Inventors: Richard Douglas Sacks, Tincuta Maria Veriotti, Megan Ellen McGuigan, Joshua Jonathan Mark Whiting