Patents by Inventor Carl L. Chen

Carl L. Chen 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).

  • Method for controlling the spin axis attitude of a spinning spacecraft
    Patent number: 4837699
    Abstract: A system located on board a geosynchronous satellite for detecting spin axis precession and developing thruster control signals for restoring the spin axis to the desired attitude. Fuel economy is enhanced by performing the major attitude correction at a time when the fuel expended contributes to that required for orbit inclination control.
    Type: Grant
    Filed: July 5, 1988
    Date of Patent: June 6, 1989
    Assignee: Hughes Aircraft Company
    Inventors: John W. Smay, William F. Hummel, Jr., Carl L. Chen, Loren I. Slafer