Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6695892 | Organic fertilizer having humic properties its method of production and its use | Klaus Fischer, Joachim Katzur | 2004-02-24 |
| 5720792 | Organic fertilizer and method of manufacturing it | Klaus Fischer, Joachim Katzur | 1998-02-24 |