Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7303017 | Perforating gun assembly and method for creating perforation cavities | James M. Barker, Michael Rogers | 2007-12-04 |
| 7172023 | Perforating gun assembly and method for enhancing perforation depth | James M. Barker, Michael Rogers | 2007-02-06 |