Patents by Inventor Joanna M. Hunter

Joanna M. Hunter 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).

  • Volatile matrices for matrix-assisted laser desorption/ionization mass spectrometry
    Patent number: 6265716
    Abstract: A sample preparation method is disclosed for volatilization and mass spectrometric analysis of nonvolatile high molecular weight molecules. Photoabsorbing molecules having significant sublimation rates at room temperature under vacuum, and preferably containing hydroxy functionalities, are disclosed for use as matrices in matrix-assisted laser desorption/ionization mass spectrometry. The samples are typically cooled in the mass spectrometer to temperatures significantly below room temperature.
    Type: Grant
    Filed: February 29, 2000
    Date of Patent: July 24, 2001
    Assignee: GeneTrace Systems, Inc.
    Inventors: Joanna M. Hunter, Hua Lin, Christopher H. Becker
  • Volatile matrices for matrix-assisted laser desorption/ionization mass spectrometry
    Patent number: 6104028
    Abstract: A sample preparation method is disclosed for volatilization and mass spectrometric analysis of nonvolatile high molecular weight molecules. Photoabsorbing molecules having significant sublimation rates at room temperature under vacuum, and preferably containing hydroxy functionalities, are disclosed for use as matrices in matrix-assisted laser desorption/ionization mass spectrometry. The samples are typically cooled in the mass spectrometer to temperatures significantly below room temperature.
    Type: Grant
    Filed: May 29, 1998
    Date of Patent: August 15, 2000
    Assignee: GeneTrace Systems Inc.
    Inventors: Joanna M. Hunter, Hua Lin, Christopher H. Becker