Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4612173 | Method of purifying by-product gypsum | Hans-Werner Gosch, Karl-Heinz Franke, Bahram Dormichian | 1986-09-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4612173 | Method of purifying by-product gypsum | Hans-Werner Gosch, Karl-Heinz Franke, Bahram Dormichian | 1986-09-16 |