Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11625105 | Method for inputting and outputting a text consisting of characters | — | 2023-04-11 |
| 6247400 | Apparatus for producing elevations which can be detected in a tactile manner | Claus Herza | 2001-06-19 |
| 6109922 | Device for representing relief items | Christoph Schwertner | 2000-08-29 |
| 5627566 | Keyboard | — | 1997-05-06 |