Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6642769 | High speed voltage level shifter with a low input voltage | Yi-Hwa Chang | 2003-11-04 |
| 6568225 | Theftproof lock device for a suitcase | — | 2003-05-27 |
| 6538868 | Electrostatic discharge protective circuit | Yi-Hua Chang, Chih-Fu Chien | 2003-03-25 |