Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4569691 | Method of making ferroboron and ferroborosilicon alloys and the alloys made by this method | Rudolf Fichte, Reinhard Hahn, Hans-Joachim Retelsdorf | 1986-02-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4569691 | Method of making ferroboron and ferroborosilicon alloys and the alloys made by this method | Rudolf Fichte, Reinhard Hahn, Hans-Joachim Retelsdorf | 1986-02-11 |