Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4235862 | Production of low sulphur chromium (III) oxide | Wolfgang Rambold, Heinrich Heine, Gerhard Trenczek | 1980-11-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4235862 | Production of low sulphur chromium (III) oxide | Wolfgang Rambold, Heinrich Heine, Gerhard Trenczek | 1980-11-25 |