Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D451119 | Reading glasses | — | 2001-11-27 |
| D446237 | Reading glasses | — | 2001-08-07 |
| 6110029 | Template for the lens of a pair of glasses | Lutz Gottschald, Jakob Wandinger | 2000-08-29 |