Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6440033 | Gearbox assembly for deep oil well pumps | Hans K. Wefers | 2002-08-27 |
| 6063001 | Gearbox assembly for deep oil well pumps | Hans K. Wefers | 2000-05-16 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6440033 | Gearbox assembly for deep oil well pumps | Hans K. Wefers | 2002-08-27 |
| 6063001 | Gearbox assembly for deep oil well pumps | Hans K. Wefers | 2000-05-16 |