Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6100869 | Display screen device | Josef Heimann | 2000-08-08 |
| 4631678 | Information input | Gunther Hahlganss | 1986-12-23 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6100869 | Display screen device | Josef Heimann | 2000-08-08 |
| 4631678 | Information input | Gunther Hahlganss | 1986-12-23 |