Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9528046 | Substrate for soil improvement having a water-storing property, method for producing same, and use thereof | Lars Passauer, Falk Liebner, Klaus Fischer | 2016-12-27 |
| 8993735 | Substrate for soil improvement having a water-storing property, method for producing same, and use thereof | Lars Passauer, Falk Liebner, Klaus Fischer | 2015-03-31 |
| 6695892 | Organic fertilizer having humic properties its method of production and its use | Klaus Fischer, Rainer Schiene | 2004-02-24 |
| 5720792 | Organic fertilizer and method of manufacturing it | Klaus Fischer, Rainer Schiene | 1998-02-24 |