Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4983005 | Optoelectronic integrated semiconductor device including a separator of the TE and TM polarizations | — | 1991-01-08 |
| 4925264 | Optical switching element comprising two parallel optical guides and switching matrix constituted by such elements | Marko Erman | 1990-05-15 |