Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5835901 | Perceptive system including a neural network | Herbert Duvoisin, III, Hal E. Beck, Mark A. Bower | 1998-11-10 |
| 4518309 | High speed pipe handling apparatus | — | 1985-05-21 |
| 4444536 | High speed well working apparatus | — | 1984-04-24 |
| 4263936 | Erosion resistant check valve assembly | — | 1981-04-28 |