Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5054564 | Well perforating apparatus | Norman S. Pollard | 1991-10-08 |
| 4915029 | Shaped charge carrier assembly method | Roger C. Appledorn, Lary G. Ratliff, William C. Behling | 1990-04-10 |
| 4800815 | Shaped charge carrier | Roger C. Appledorn, Lary G. Ratliff, William C. Behling | 1989-01-31 |
| 4773299 | Well perforating apparatus and method | Norman S. Pollard | 1988-09-27 |
| 4726431 | Well perforating apparatus and method | Norman S. Pollard | 1988-02-23 |