Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4221549 | Inertia bar for sucker rods | Michael L. Rizzone | 1980-09-09 |
| 4207036 | Subsurface pumping installation for handling viscous or sand-laden fluids | — | 1980-06-10 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4221549 | Inertia bar for sucker rods | Michael L. Rizzone | 1980-09-09 |
| 4207036 | Subsurface pumping installation for handling viscous or sand-laden fluids | — | 1980-06-10 |