Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1064068 | Sketching sponge | Xiongge Zheng | 2025-02-25 |
| D1016167 | Ink refill for marker | Zhicheng Chen, Xiongge Zheng | 2024-02-27 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1064068 | Sketching sponge | Xiongge Zheng | 2025-02-25 |
| D1016167 | Ink refill for marker | Zhicheng Chen, Xiongge Zheng | 2024-02-27 |