Patents by Inventor Francisco J. Andrade

Francisco J. Andrade 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).

  • Laser ablation flowing atmospheric-pressure afterglow for ambient mass spectrometry
    Patent number: 8207494
    Abstract: Disclosed is an apparatus for performing mass spectrometry and a method of analyzing a sample through mass spectrometry. In particular, the disclosure relates to an apparatus capable of ambient mass spectrometry and mass spectral imaging and a method for the same. The apparatus couples laser ablation, flowing atmospheric-pressure afterglow ionization, and a mass spectrometer.
    Type: Grant
    Filed: May 1, 2009
    Date of Patent: June 26, 2012
    Assignee: Indiana University Research and Technology Corporation
    Inventors: Gary M. Hieftje, Francisco J. Andrade, Steven J. Ray, Jacob T. Shelley
  • Methods and apparatus for ionization and desorption using a glow discharge
    Patent number: 7893408
    Abstract: A method for ionizing and desorbing a sample for analysis includes energizing a first and second electrode to produce a glow discharge at atmospheric pressure. The method further includes supplying a carrier gas to at least a portion of the glow discharge to create effluents thereof. The method further includes conducting the effluents of the glow discharge to the sample to ionize and desorb the sample for analysis. An associated apparatus is also disclosed.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: February 22, 2011
    Assignee: Indiana University Research and Technology Corporation
    Inventors: Gary M. Hieftje, Steven J. Ray, Francisco J. Andrade, William C. Wetzel, Michael R. Webb, Gerardo Gamez, Jacob T. Shelley
  • Laser ablation flowing atmospheric-pressure afterglow for ambient mass spectrometry
    Publication number: 20090272893
    Abstract: Disclosed is an apparatus for performing mass spectrometry and a method of analyzing a sample through mass spectrometry. In particular, the disclosure relates to an apparatus capable of ambient mass spectrometry and mass spectral imaging and a method for the same. The apparatus couples laser ablation, flowing atmospheric-pressure afterglow ionization, and a mass spectrometer.
    Type: Application
    Filed: May 1, 2009
    Publication date: November 5, 2009
    Inventors: Gary M. Hieftje, Francisco J. Andrade, Steven J. Ray, Jacob T. Shelley
  • Methods and apparatus for ionization and desorption using a glow discharge
    Publication number: 20080202915
    Abstract: A method for ionizing and desorbing a sample for analysis includes energizing a first and second electrode to produce a glow discharge at atmospheric pressure. The method further includes supplying a carrier gas to at least a portion of the glow discharge to create effluents thereof. The method further includes conducting the effluents of the glow discharge to the sample to ionize and desorb the sample for analysis. An associated apparatus is also disclosed.
    Type: Application
    Filed: October 31, 2007
    Publication date: August 28, 2008
    Inventors: Gary M. Hieftje, Steven J. Ray, Francisco J. Andrade, William C. Wetzel, Michael R. Webb, Gerardo Gamez