Patents by Inventor Christopher E Crabtree

Christopher E Crabtree 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).

  • Technique for de-orbiting small debris from the near-earth space environment
    Patent number: 8579235
    Abstract: System and method for inducing rapid reentry of orbital debris including determining a spatial extent of the orbital debris, and deploying dust to the orbital debris to enhance the drag on the orbital debris. Small objects with perigee above about 900 km where the debris lifetime can be centuries can be targeted for de-orbiting.
    Type: Grant
    Filed: May 3, 2013
    Date of Patent: November 12, 2013
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: Gurudas Ganguli, Scott S. Chappie, Leonid I. Roudakov, Christopher E. Crabtree
  • Technique for De-Orbiting Small Debris from the Near-Earth Space Environment
    Publication number: 20130240675
    Abstract: System and method for inducing rapid reentry of orbital debris including determining a spatial extent of the orbital debris, and deploying dust to the orbital debris to enhance the drag on the orbital debris. Small objects with perigee above about 900 km where the debris lifetime can be centuries can be targeted for de-orbiting.
    Type: Application
    Filed: May 3, 2013
    Publication date: September 19, 2013
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Gurudas Ganguli, Scott S. Chappie, Leonid I. Roudakov, Christopher E. Crabtree
  • Technique for de-orbiting small debris from the near-earth space environment
    Patent number: 8469314
    Abstract: System and method for inducing rapid reentry of orbital debris including determining a spatial extent of the orbital debris, and deploying dust to the orbital debris to enhance the drag on the orbital debris.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: June 25, 2013
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: Gurudas Ganguli, Scott S Chappie, Leonid I Roudakov, Christopher E Crabtree