Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6644847 | Quasi-continuous treatment of particulate materials with cleansing nozzle system | — | 2003-11-11 |
| 6105533 | Drum for holding a particulate material, device having a drum and process for the production of the drum | — | 2000-08-22 |
| 5693362 | Process and apparatus for moving and treating a particulate material | Winfried Doetsch, Lutz Donnerhack, Wolfgang Hungerbach, Matthias Tondar | 1997-12-02 |
| 5108233 | Hydraulic container conveying apparatus | Alfred Bolz | 1992-04-28 |
| 4980029 | Apparatus for treating waste materials | Alfred Bolz | 1990-12-25 |
| 4637760 | Apparatus for transporting articles by fluid flow through a pipe system | — | 1987-01-20 |