Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7635822 | Method for treating ground crude potassium salts that contain kieserite | Florian Deiseroth, Sascha Vensky, Ingo Stahl | 2009-12-22 |
| 5562755 | Process for the treatment of langbeinite and anhydrite containing kieserite concentrates | G unter Fricke, Ingo Stahl | 1996-10-08 |