Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5375658 | Shut-in tools and method | Roger L. Schultz, Harold Kent Beck, William L. Bohan | 1994-12-27 |
| 5332035 | Shut-in tools | Roger L. Schultz, Harold Kent Beck, William L. Bohan | 1994-07-26 |
| 5279363 | Shut-in tools | Roger L. Schultz, Harold Kent Beck, William L. Bohan | 1994-01-18 |