Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4442525 | Electrode for arc furnaces | Dieter Zollner, Friedrich Rittmann, Herbert Dung, Georg Bauer, Josef Otto +2 more | 1984-04-10 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4442525 | Electrode for arc furnaces | Dieter Zollner, Friedrich Rittmann, Herbert Dung, Georg Bauer, Josef Otto +2 more | 1984-04-10 |