Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5852243 | Method and apparatus for detecting a road pavement surface condition | James Shih-Tsih Chang | 1998-12-22 |
| 5778332 | Electronic nervous system for a roadway and method | James Shih-Tsih Chang | 1998-07-07 |
| 5142193 | Photonic cathode ray tube | James Chang | 1992-08-25 |