Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6634428 | Delayed opening ball seat | Christiaan D. Krauss | 2003-10-21 |
| 6631765 | Hanging liners by pipe expansion | John L. Baugh, Rod Bennett | 2003-10-14 |
| 6598677 | Hanging liners by pipe expansion | John L. Baugh, Rod Bennett | 2003-07-29 |
| 6561271 | Hanging liners by pipe expansion | John L. Baugh, Rod Bennett | 2003-05-13 |