Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6901043 | Scratch-off material layer applied on optical recording media | Shi-Hui Zhang, Irene Chen, Hsien-Chin Liu, Kuan-Chung Chang | 2005-05-31 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6901043 | Scratch-off material layer applied on optical recording media | Shi-Hui Zhang, Irene Chen, Hsien-Chin Liu, Kuan-Chung Chang | 2005-05-31 |