Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7794331 | Golf club interchanging connection structure (III) | Cheng-Tao Lee | 2010-09-14 |
| 7651407 | Golf club interchanging connection structure (II) | Cheng-Tao Lee | 2010-01-26 |
| 7621821 | Golf club interchanging connection structure (I) | Cheng-Tao Lee | 2009-11-24 |
| 7314586 | Method for manufacturing a wax mold for a golf club head | Che-Ming Yu, Ying-Sen Hsu | 2008-01-01 |