Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5929499 | Photodiode array | Werner Kuhlmann, Martin Schmidt, Roland Ziegler | 1999-07-27 |
| 5661293 | Photodiode array with photodiode/extraction diode combinations with dark current thereof regulated to zero | Roland Ziegler | 1997-08-26 |