Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4478279 | Retrievable inside blowout preventer valve apparatus | Joseph Puntar | 1984-10-23 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4478279 | Retrievable inside blowout preventer valve apparatus | Joseph Puntar | 1984-10-23 |