Patents by Inventor Colleen Marrese

Colleen Marrese 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).

  • Micro-colloid thruster system
    Patent number: 6516604
    Abstract: A micro-colloid thruster system may be fabricated using micro electromechanical system (MEMS) fabrication techniques. A beam of charged droplets may be extracted from an emitter tip in an emitter array by an extractor electrode and accelerated by an accelerator electrode to produce thrust. The micro-colloid thruster system may be used as the main propulsion system for microspacecraft and for precision maneuvers in larger spacecraft.
    Type: Grant
    Filed: March 27, 2001
    Date of Patent: February 11, 2003
    Assignee: California Institute of Technology
    Inventors: Mohammad M. Mojarradi, James Polk, Colleen Marrese, Juergen Mueller
  • Micro-colloid thruster system
    Publication number: 20020023427
    Abstract: A micro-colloid thruster system may be fabricated using micro electromechanical system (MEMS) fabrication techniques. A beam of charged droplets may be extracted from an emitter tip in an emitter array by an extractor electrode and accelerated by an accelerator electrode to produce thrust. The micro-colloid thruster system may be used as the main propulsion system for microspacecraft and for precision maneuvers in larger spacecraft.
    Type: Application
    Filed: March 27, 2001
    Publication date: February 28, 2002
    Inventors: Mohammad M. Mojarradi, James Polk, Colleen Marrese, Juergen Mueller