Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6439322 | Downhole hammer-type core barrel and method of using same | — | 2002-08-27 |
| 6409432 | Downhole hammer-type core barrel and method of using same | — | 2002-06-25 |
| 6371698 | Post stressed pier | Philip G. King | 2002-04-16 |