Issued Patents 2023
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11560490 | Water-based ink composition for ballpoint pen and water-based ballpoint pen using the same | — | 2023-01-24 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11560490 | Water-based ink composition for ballpoint pen and water-based ballpoint pen using the same | — | 2023-01-24 |