Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4621674 | Means of anchorage of anode pins or stubs in a carbon anode | Horst Kaiser, Alfred Sturm | 1986-11-11 |
| 4563255 | Process and device for controlling a crust breaking facility | Werner Braun | 1986-01-07 |