Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6598485 | Method and device for evaluating quality of concrete structures | Chiafeng Chang | 2003-07-29 |
| 6029521 | Method for measuring cover thickness of reinforcing bar in concrete by using stress wave | Chia-Chi Cheng, Chia-Men Hsiao | 2000-02-29 |