Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4925826 | Method of producing an adsorbent from bloating minerals and calcium sulfate hemihydrate | Heiner Hamm, Peter Hartmann, Karl-Heinz Kampner | 1990-05-15 |
| 4540439 | Process for preparation of gypsum shapes | — | 1985-09-10 |
| 4508574 | Process for improving the fluidity and conveyability of moist calcium sulfate precipitates | Karl-Heinz Kampner | 1985-04-02 |
| 4399110 | Process for reducing the radioactivity of calcium sulfate prepared from phosphate rock | — | 1983-08-16 |
| 4331465 | Process for the production of NPK fertilizers resistant to smoldering decomposition at elevated temperatures | Heinrich Hahn | 1982-05-25 |