Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11542401 | Whitish writing and marking fluid for capillary systems and writing instrument | Tatiana Appel, Gerhard Lugert | 2023-01-03 |
| 6164600 | Device for detecting the positions of pivotable parts of a point | Josef Frauscher | 2000-12-26 |