Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889401 | Birefringent optical waveguide structure having a strip waveguide buried in a cladding layer and the method of manufacturing | Ekkehard Klement, Hartmut Schneider, Holger Karstensen | 1989-12-26 |