Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5307268 | Method for using P-S converted waves as a subsalt imaging tool | David W. Bell, Stephen John Hill, Gregory L. Loumos | 1994-04-26 |
| 5265068 | Efficient generation of traveltime tables for complex velocity models for depth migration | Douglas W. Hanson | 1993-11-23 |
| 5229938 | Method for migrating seismic data by using ray tracing in determining two way travel times | John B. Sinton, Douglas W. Hanson | 1993-07-20 |
| 5229940 | Method of extracting three dimensional information from a grid of two dimensional seismic data | David W. Bell | 1993-07-20 |
| 5189643 | Method of accurate fault location using common reflection point gathers | David W. Bell | 1993-02-23 |
| 5157637 | Method of structural traveltime tomography | — | 1992-10-20 |
| 5157638 | Method of deriving statics corrections from common reflection point gathers | Gregory L. Loumos, Thomas R. Stoeckley | 1992-10-20 |
| 5153857 | Method for selecting seismic traces for higher efficiency of pre-stack two dimensional or three dimensional depth migration | — | 1992-10-06 |
| 5128899 | Method for sharpening prestack depth migration images by removing residual moveout from common image point gathers before stacking | Mark Boyd, James Morton Tippett, Douglas W. Hanson | 1992-07-07 |
| 5089994 | Tomographic estimation of seismic transmission velocities from constant offset depth migrations | Wiliam S. Harlan, Douglas W. Hanson | 1992-02-18 |
| 5084844 | Efficient method for storing seismic traces on disk | — | 1992-01-28 |
| 5067113 | Efficient generation of traveltime tables for two dimensional and three dimensional prestack depth migration | Douglas W. Hanson, William S. Harlan | 1991-11-19 |
| 5062086 | Calculation of raypaths and wavepaths from traveltime tables for the tomographic estimation of transmission velocities | William S. Harlan, Douglas W. Hanson | 1991-10-29 |
| 5050131 | Quantitative method for evaluating velocity model quality | Douglas W. Hanson, Thomas D. Cavanaugh | 1991-09-17 |
| 4992996 | Interval velocity analysis and depth migration using common reflection point gathers | Doublas W. Hanson, Thomas D. Cavanaugh | 1991-02-12 |
| 4980866 | Common offset depth migration with residual moveout correction | Thomas D. Cavanaugh, Douglas W. Hanson | 1990-12-25 |
| 4964089 | Method for derivation of internal velocities from post-migration parts | Douglas W. Hanson, Thomas D. Cavanaugh | 1990-10-16 |
| 4964097 | Three dimensional image construction using a grid of two dimensional depth sections | Douglas W. Hanson, Thomas D. Cavanaugh | 1990-10-16 |
| 4918670 | Method for interval velocity analysis and determination of reflector position from before stack seismic data | — | 1990-04-17 |