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, Werner Glasmacher, Dieter Stusser | 1994-05-10 |
| 4389879 | Method and apparatus for determining the colloid index in liquids | Heiner G. Jackle, Kurt Marquardt | 1983-06-28 |