Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5666328 | Three axis seismic vibrator | John Crowell, James Teske | 1997-09-09 |
| 4692912 | Automatic force control for a seismic vibrator | Allan H. Mueller, Dean Perkins | 1987-09-08 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5666328 | Three axis seismic vibrator | John Crowell, James Teske | 1997-09-09 |
| 4692912 | Automatic force control for a seismic vibrator | Allan H. Mueller, Dean Perkins | 1987-09-08 |