Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8465567 | Method for the production of humus- and nutrient-rich and water-storing soils or soil substrates for sustainable land use and development systems | Haiko Pieplow, Alfons-Eduard Krieger | 2013-06-18 |
| 8029673 | Vertical-horizontal filter unit for the biological purification of polluted water | — | 2011-10-04 |