Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5368111 | Directional drilling sub with improved multi-slot locking arrangement | Joseph Benoit, III | 1994-11-29 |
| 4303135 | Directional drilling sub | — | 1981-12-01 |
| 4220214 | Directional drilling sub | — | 1980-09-02 |