Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6318053 | Device for automatic bundling of sheets | Ulrich Frank, Rainer Stoll, Ralf Linck | 2001-11-20 |
| 5283603 | Slide magazine | Christian Rehm | 1994-02-01 |
| 5235362 | Slide projector for wall projection and groundglass plate projection | — | 1993-08-10 |
| 5210556 | Slide magazine | Christian Rehm | 1993-05-11 |
| 4854697 | Slides projector | Hermann Kupper, Christian Rehm | 1989-08-08 |