Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6788042 | Variable impedance network for an integrated circuit potentiometer | William Tang, Zhan Duan, Chao-Ming Tsai, Lawrence D. Engh | 2004-09-07 |
| 6744244 | Variable impedance network with coarse and fine controls | Chun-Mai Liu | 2004-06-01 |