Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5057208 | Method for the production of potassium chloride with K.sub.2 O content of more than 55 weight percent | Fritz Hagedorn, Arno Singewald | 1991-10-15 |
| 4792350 | Method of granulating water soluble fertilizer with high kieserite content | Karl-Richard L/o/ blich, G/u/ nter Bruns | 1988-12-20 |
| 4707347 | Process for the production of potassium sulfate from potassium chloride by means of ion exchangers | Sandor Vajna | 1987-11-17 |