Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5431708 | Process for preventing a formation of dust during the loading and shipping of sulfate fertilizer granulates | Gerhard Lehmann, Wolfgang Walczyk | 1995-07-11 |
| 5383952 | Process for binding dust in fertilizer granules | Arno Singewald, Gunter Nurnberger, Dieter Paetz, Wolfgang Walczyk, Klaus Muller | 1995-01-24 |