Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6634856 | Integrally formed stamped sheet-metal blades having 3D structure | Huan-Jan Chien, Yee-Ren Chen, Rong-Jau Liaw | 2003-10-21 |
| 6506023 | Integrally formed stamping sheet-metal blades having 3D structure | Huan-Jan Chien, Yee-Ren Chen, Rong-Jau Liaw | 2003-01-14 |
| 6220819 | Centrifugal pump impeller | Huan-Jan Chien, Pao-Yin Ou, Shu-Fen Kao | 2001-04-24 |