Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6424452 | Transversal electrooptical modulator | Frank Diedrich, Thomas Fehn, Thomas Engel, Frank Reissmann | 2002-07-23 |
| 5999343 | Housing for crystal accommodated in its interior with polished optical end faces | Frank Diedrich, Thomas Engel, Jens Harnisch | 1999-12-07 |