Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4248847 | Process for preparing a substantially crystalline sodium aluminosilicate | Helmut Derleth, Karl-Heinrich Bretz, Artur Kurs | 1981-02-03 |
| 4203953 | Process for removing SO.sub.2 from waste gases | Hartmut Simoleit | 1980-05-20 |