Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7533727 | Oil well completion tool having severable tubing string barrier disc | John A. Barton, Mark Burris, Donald R. Hibler, Jr., Daniel O'Halloran | 2009-05-19 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7533727 | Oil well completion tool having severable tubing string barrier disc | John A. Barton, Mark Burris, Donald R. Hibler, Jr., Daniel O'Halloran | 2009-05-19 |