Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9060587 | Pencil | Udo Pschirer | 2015-06-23 |
| 6149331 | Refillable soft lead pencil | Werner Zahn | 2000-11-21 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9060587 | Pencil | Udo Pschirer | 2015-06-23 |
| 6149331 | Refillable soft lead pencil | Werner Zahn | 2000-11-21 |