Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5839520 | Method of drilling well bores | — | 1998-11-24 |
| 4862975 | Drilling fluid additive | Jerome L. Begnaud | 1989-09-05 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5839520 | Method of drilling well bores | — | 1998-11-24 |
| 4862975 | Drilling fluid additive | Jerome L. Begnaud | 1989-09-05 |