Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4992991 | Marine seismic receiving system employing multiple depth hydrostreamer cable | Richard E. Duren | 1991-02-12 |
| 4960183 | Seismic source firing control system | — | 1990-10-02 |
| 4872144 | Endfire seismic receiver and method of use | Richard E. Duren | 1989-10-03 |
| 4870625 | Marine shear-wave detection system using single mode reflection boundary conversion technique | Richard C. Swenson | 1989-09-26 |
| 4835745 | Method of radial seismic data collection for improved salt structure imaging | Richard E. Duren | 1989-05-30 |