Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7811020 | Writing instrument | Yu-Gang Chen | 2010-10-12 |
| 6347597 | Flat sewing device without thread bobbins | — | 2002-02-19 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7811020 | Writing instrument | Yu-Gang Chen | 2010-10-12 |
| 6347597 | Flat sewing device without thread bobbins | — | 2002-02-19 |