Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4766974 | Seismic signal generator with a self-expanding vibrator support base | Richard K. Thomson | 1988-08-30 |
| 4735280 | Seismic shear wave vibrator with telescoping blade | — | 1988-04-05 |
| 4709362 | Oscillating orbital vibrator | — | 1987-11-24 |
| 4641725 | Wide dynamic range hydraulic vibrator | Delbert W. Fair | 1987-02-10 |
| 4333355 | Pressure balanced drag turbine mass flow meter | Michael W. Dacus | 1982-06-08 |
| 4196613 | Device for measuring the fluid density of a two-phase mixture | — | 1980-04-08 |