Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5572617 | Housing for optical components | Axel Thiel, Eberhard Kahle, Paul Oehlkers, Peter Grugel | 1996-11-05 |
| 5420956 | Case for passive optical components | Peter Grugel, Paul Oehlkers, Martin Struss, Dietrich Rund | 1995-05-30 |