Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5308596 | Process for the production of crystalline sodium disilicate in an externally heated rotary kiln having temperature zones | Michael Kotzian, Gunther Schimmel, Knut Bauer | 1994-05-03 |