Patents by Inventor David N. Guilfoyle

David N. Guilfoyle 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).

  • Echo planar imaging using 180 degrees pulses
    Patent number: 5336999
    Abstract: A magnetic resonant image of an object is produced by subjecting the object to an initial slice selection to provide an active region and by subjecting the active region to a plurality of 180.degree. RF pulses and appropriate amplitude modulated x and y gradients.
    Type: Grant
    Filed: March 6, 1992
    Date of Patent: August 9, 1994
    Assignee: British Technology Group Limited
    Inventors: Peter Mansfield, David N. Guilfoyle, Roger J. Ordidge
  • Method and apparatus for measuring fluid transport properties through porous media by NMR imaging
    Patent number: 5278501
    Abstract: The fluid transport properties of a porous media are determined by NMR imaging showing the fluid transport properties such as fluid velocity, fluid acceleration, fluid jerk, translational self diffusion, sample permeability to fluid transport, etc.
    Type: Grant
    Filed: September 27, 1991
    Date of Patent: January 11, 1994
    Assignee: British Technology Group Limited
    Inventor: David N. Guilfoyle
  • NMR imaging
    Patent number: 5162736
    Abstract: A nuclear magnetic resonance (NMR) method of producing a series of three or four dimensional spin parameter maps of a defined region, which spin parameter maps are displayable as a set of contiguous planar spin parameter maps with arbitrary orientation.
    Type: Grant
    Filed: January 18, 1991
    Date of Patent: November 10, 1992
    Assignee: National Research Development Corporation
    Inventors: Peter Mansfield, Alistair Howseman, Roger J. Ordidge, David N. Guilfoyle