Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5169444 | Process for preparing calcium sulfate anhydrite | Franz Wirsching | 1992-12-08 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5169444 | Process for preparing calcium sulfate anhydrite | Franz Wirsching | 1992-12-08 |