Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4884711 | Container system for the storage of wastes | Ernst Fischer, Dieter Rudat | 1989-12-05 |
| 4426817 | Double-walled tank for low-temperature liquids | — | 1984-01-24 |
| 4366654 | Double-walled tank for low-temperature liquids | — | 1983-01-04 |