Patents by Inventor James M. Tippett

James M. Tippett 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).

  • Dust suppression of mineral and other inorganic particles
    Patent number: 5215784
    Abstract: Dilute solutions of diallydimethyl ammonium chloride polymers are effective as dust suppressants for finely divided mineral and coal particles.
    Type: Grant
    Filed: October 6, 1992
    Date of Patent: June 1, 1993
    Assignee: Nalco Australia Pty. Ltd.
    Inventors: James M. Tippett, Michael Groesz
  • Method for sharpening prestack depth migration images by removing residual moveout from common image point gathers before stacking
    Patent number: 5128899
    Abstract: A method for removing residual moveout includes sorting the results of common offset depth migration into common image point gathers. A subset of image point gathers are selected for analysis. Each common image point gather is separated vertically into windows, each of which centers on a strong event. For each window, all the offset traces are summed to produce a brute stack trace to be used as an anchor. All offsets are cross-correlated to the anchor to determine how much each trace window should be shifted to sum most constructively with the anchor. A set of dynamic shifts is produced, which when applied, will remove the residual moveouts and produce a truly flat image for stacking. These shifts vary with depth and offset and can be interpolated between the selected image point gathers.
    Type: Grant
    Filed: July 16, 1991
    Date of Patent: July 7, 1992
    Assignee: Conoco Inc.
    Inventors: Mark Boyd, Shein S. Wang, James M. Tippett, Douglas W. Hanson