Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4392655 | High-pressure seal with controlled deflection under pressure | John H. Olsen | 1983-07-12 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4392655 | High-pressure seal with controlled deflection under pressure | John H. Olsen | 1983-07-12 |