Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5520478 | Landscaped urban road intersection | — | 1996-05-28 |
| 4986692 | Road intersection construction for traffic control | — | 1991-01-22 |
| 4627539 | Method of and apparatus for transporting goods | Wei-Chuan Chang | 1986-12-09 |
| 4267900 | Emergency escape system | — | 1981-05-19 |
| 4207965 | Gliding cars and tracks type high building emergency escaping device | Fu Chiang-Cheng | 1980-06-17 |