Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5733423 | Device for separation of cast thimbles from anode bars | — | 1998-03-31 |
| 5547277 | Preheating screw | Ulrich Huwel | 1996-08-20 |
| 5261324 | Roller bearing of a two-roller machine | Willy Jakobs | 1993-11-16 |
| 4248556 | Method for smoothing the surface of bar material | Willy Jakobs | 1981-02-03 |