Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6935751 | Projection arrangement for correcting for image distortions | Gudrun Schröter, Ralph Mende | 2005-08-30 |
| 6580469 | Projection device | Dietrich Schmidt, Juergen Pudenz, Hans-Juergen Meissner, Hans-Joachim Stoehr, Eberhard Piehler +1 more | 2003-06-17 |
| 5056901 | Wide-angle objective | Gerhard Risch | 1991-10-15 |