Patents by Inventor David T Ryan

David T Ryan 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).

  • Systems and methods for gradient compensation in magnetic resonance imaging
    Patent number: 6850066
    Abstract: A gradient compensation system comprising a magnet assembly, at least one field-generating gradient coil operable for generating magnetic field gradients in three orthogonal coordinates, and at least one gradient compensation coil positioned adjacent to the magnet assembly and operable for generating a magnetic field to compensate for leakage fields. A system for eliminating image distortion in magnetic resonance imaging comprising a magnet assembly comprising an imaging gradient coil and an imaging volume, and at least one gradient compensation coil positioned adjacent to the magnet assembly operable for generating gradient compensation fields in response to the magnetic field change.
    Type: Grant
    Filed: May 15, 2003
    Date of Patent: February 1, 2005
    Assignee: GE Medical Systems Global Technology Company LLC
    Inventors: Timothy J. Havens, Xianrui Huang, David T Ryan