Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6497271 | Pig casting machine | Peter Heinrich, Volker Hille, Ursula Kallenborn-Weber, Manfred Albedyhl, Hartmut Hille | 2002-12-24 |
| 6490312 | Direct-current arc furnace comprising a centric charging shaft for producing steel and a method therefor | Wei-Ping Wu | 2002-12-03 |
| 6471911 | Method and device for sealing a tap hole in metallurgical containers | Wei-Ping Wu | 2002-10-29 |