Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11845298 | Writing instrument having color indication-changeable grip | — | 2023-12-19 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11845298 | Writing instrument having color indication-changeable grip | — | 2023-12-19 |