Issued Patents 2020
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10603949 | Pen for writing and drawing purposes | Ralf Lehnhardt, Gunter Andree | 2020-03-31 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10603949 | Pen for writing and drawing purposes | Ralf Lehnhardt, Gunter Andree | 2020-03-31 |