Patents by Inventor Ronald Jeffrey Focia

Ronald Jeffrey Focia 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).

  • High-voltage, high-current, solid-state closing switch
    Patent number: 9742394
    Abstract: A high-voltage, high-current, solid-state closing switch uses a field-effect transistor (e.g., a MOSFET) to trigger a high-voltage stack of thyristors. The switch can have a high hold-off voltage, high current carrying capacity, and high time-rate-of-change of current, di/dt. The fast closing switch can be used in pulsed power applications.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: August 22, 2017
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventor: Ronald Jeffrey Focia
  • High-voltage, high-current, solid-state closing switch
    Publication number: 20150365086
    Abstract: A high-voltage, high-current, solid-state closing switch uses a field-effect transistor (e.g., a MOSFET) to trigger a high-voltage stack of thyristors. The switch can have a high hold-off voltage, high current carrying capacity, and high time-rate-of-change of current, di/dt. The fast closing switch can be used in pulsed power applications.
    Type: Application
    Filed: June 16, 2014
    Publication date: December 17, 2015
    Inventor: Ronald Jeffrey Focia