Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5310164 | Tapping pipe and system for a converter or electric arc furnace | Hans Rothfuss, Gunther Haubold, Dieter Bach, Werner Glasmacher | 1994-05-10 |
| 4984769 | Tap spout for metallurgical vessels and method of repairing | Raimund Bruckner, Axel Eschner, Wilhelm Langenfeld, Manfred Oberbach, Hans Rothfuss | 1991-01-15 |