Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4822212 | Subsea template and method for using the same | Johnce E. Hall | 1989-04-18 |
| 4274498 | Rock bit lubrication system utilizing expellable plug for obtaining expansion space | — | 1981-06-23 |