Patents by Inventor Chris Hogan

Chris Hogan 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).

  • Electrospray ionizer for mass spectrometry of aerosol particles
    Patent number: 9768005
    Abstract: A device and method are disclosed to apply ESI-based mass spectroscopy to submicrometer and nanometer scale aerosol particles. Unipolar ionization is utilized to charge the particles in order to collect them electrostatically on the tip of a tungsten rod. Subsequently, the species composing the collected particles are dissolved by making a liquid flow over the tungsten rod. This liquid with dissolved aerosol contents is formed into highly charged droplets, which release unfragmented ions for mass spectroscopy, such as time-of-flight mass spectroscopy. The device is configured to operate in a switching mode, wherein aerosol deposition occurs while solvent delivery is turned off and vice versa.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: September 19, 2017
    Assignees: MSP Corporation, Regents of the University of Minnesota
    Inventors: Siqin He, Chris Hogan, Lin Li, Benjamin Y. H. Liu, Amir Naqwi, Francisco Romay
  • Mortar ballistic computer and system
    Patent number: 7526403
    Abstract: A software and related software operational system has both military and civilian uses and that can be operated as a light weight, hand-held, commercial, off-the-shelf computer device. The ballistic computer utilizes a display format that permits entry and display of both graphical and alphanumeric data simultaneously. This display and data entry format is especially applicable to the firing of mortars, allowing a representation of both where the mortar currently is and where it is projected to land.
    Type: Grant
    Filed: July 31, 2002
    Date of Patent: April 28, 2009
    Assignee: Dahlgren, LLC
    Inventors: Chris Hogan, Kirt Christensen
  • Mortar ballistic computer and system
    Publication number: 20040024566
    Abstract: A software and related software operational system has both military and civilian uses and that can be operated as a light weight, hand-held, commercial, off-the-shelf computer device. The ballistic computer utilizes a display format that permits entry and display of both graphical and alphanumeric data simultaneously. This display and data entry format is especially applicable to the firing of mortars, allowing a representation of both where the mortar currently is and where it is projected to land.
    Type: Application
    Filed: July 31, 2002
    Publication date: February 5, 2004
    Inventors: Chris Hogan, Kirt Christensen