Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4951109 | Turn-off power semiconductor component | Wolfgang Gross | 1990-08-21 |
| 4248502 | Electro-optical liquid crystal display device | Hans Krueger | 1981-02-03 |
| 4231034 | Display device for illustrating variable and fixed information | — | 1980-10-28 |