Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4298572 | Mud logging system | John D. Moffet, David L. Ragsdill | 1981-11-03 |
| 4287761 | Mud sampling chamber | John D. Moffet | 1981-09-08 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4298572 | Mud logging system | John D. Moffet, David L. Ragsdill | 1981-11-03 |
| 4287761 | Mud sampling chamber | John D. Moffet | 1981-09-08 |