Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8104996 | Two-shell structural system for constructing plantable steep embankments formed from several layers | Claus Goebel, Klaus Lieberenz, Dietmar Adams | 2012-01-31 |
| 4696531 | Plug-in type contact arrangement | Helmut Bohme, Helmut Lobl | 1987-09-29 |