Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5654559 | Optical coupling device and method for manufacturing the same | Norbert Stath, Ernst Nirschl, Walter Wegleiter, Werner Kuhlmann, Rudolf Buchberger | 1997-08-05 |
| 5614736 | Gallium phosphate light emitting diode with zinc-doped contact | Gerald Neumann, Ernst Nirschl | 1997-03-25 |