Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6439256 | Switchable flap valve | Hans-Gerhard Kogler, Gerhard Kranz, Christoph Metz, Frank Schroeter, Hans-Joachim Faulstroh | 2002-08-27 |
| 5388006 | Telephoto camera lens | — | 1995-02-07 |
| 5321555 | Compact photographic objective of the triplet type having improved chromatic and monochromatic characteristics | Klaus Schaefer | 1994-06-14 |