Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4925826 | Method of producing an adsorbent from bloating minerals and calcium sulfate hemihydrate | Heiner Hamm, Peter Hartmann, Hans-Friedrich Kurandt | 1990-05-15 |
| 4508574 | Process for improving the fluidity and conveyability of moist calcium sulfate precipitates | Hans-Friedrich Kurandt | 1985-04-02 |