Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4643768 | Inoculant alloy based on ferrosilicon or silicon and process for its preparation | Heinz Bruckmann, Friedrich Wolfsgruber | 1987-02-17 |
| 4540436 | Treatment agent for cast iron melts and a process for the production thereof | Friedrich Wolfsgruber, Werner Gmohling, Hans Kern, Karl J. Reifferscheid | 1985-09-10 |