Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6270029 | Spiral storage | Edmund Fendt, Hans Frei, Werner Gassmann | 2001-08-07 |
| 6246462 | Apparatus for producing photographic copies | Rudolf Ackermann, Edmund Fendt, Helmut Lussky | 2001-06-12 |
| 5284305 | Cassette for winding up photographic strip material | Werner Gassmann, Erich Binder | 1994-02-08 |