Patents by Inventor Greg Spanjers

Greg Spanjers 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).

  • Electrically controlled extinguishable solid propellant motors
    Patent number: 7788900
    Abstract: Motor designs that enable the control of ignition, combustion burn rate, extinguishment, and reignition of solid propellants by precise application of electrical power are provided. Design of such motors, including choice of electrode materials, the form of electric power, and exemplary facial-extent electrode and axial-extent electrode configurations are also provided.
    Type: Grant
    Filed: January 14, 2003
    Date of Patent: September 7, 2010
    Inventors: Michael Dulligan, James Lake, Paul Adkison, Greg Spanjers, David White, Hieu Nguyen
  • Methods of controlling solid propellant ignition, combustion, and extinguishment
    Patent number: 7770380
    Abstract: An apparatus and method to control ignition, combustion burn rate, extinguishment, and reignition of solid propellant is provided.
    Type: Grant
    Filed: January 13, 2003
    Date of Patent: August 10, 2010
    Inventors: Michael Dulligan, James Lake, Paul Adkison, Greg Spanjers, David White, Hieu Nguyen
  • Electrically controlled extinguishable solid propellant motors
    Publication number: 20080092521
    Abstract: Motor designs that enable the control of ignition, combustion burn rate, extinguishment, and reignition of solid propellants by precise application of electrical power are provided. Design of such motors, including choice of electrode materials, the form of electric power, and exemplary facial-extent electrode and axial-extent electrode configurations are also provided.
    Type: Application
    Filed: January 14, 2003
    Publication date: April 24, 2008
    Inventors: Michael Dulligan, James Lake, Paul Adkison, Greg Spanjers, David White, Hieu Nguyen
  • Methods of controlling solid propellant ignition, combustion, and extinguishment
    Publication number: 20080087003
    Abstract: An apparatus and method to control ignition, combustion burn rate, extinguishment, and reignition of solid propellant is provided.
    Type: Application
    Filed: January 13, 2003
    Publication date: April 17, 2008
    Inventors: Michael Dulligan, James Lake, Paul Adkison, Greg Spanjers, David White, Hieu Nguyen