Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D521512 | Input/output device | Hansruedi Künzi, Patrik Morf | 2006-05-23 |
| 5574746 | Melting furnace for thermal treatment of special wastes containing heavy metals and/or dioxin | Hans Ammon, Christian Wieckert | 1996-11-12 |
| 5501431 | Melting furnace for residues from waste incineration plants | Christian Wieckert | 1996-03-26 |
| 5489085 | Waste-gas piping for a filter dust melting furnace | Hans Ammon, Jurgen Balg | 1996-02-06 |