Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6642703 | Peak detector and detecting method thereof | Pi-Fen Chen | 2003-11-04 |
| 6574576 | Equalizer with auto-calibration and self-test | Pi-Fen Chen | 2003-06-03 |
| D470509 | Hand-carried air-compressor for car | — | 2003-02-18 |
| D470510 | Hand-held air-compressor for car | — | 2003-02-18 |