Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6283280 | Compact disc container with locking tube | Chen-Cheng Chang | 2001-09-04 |
| 6283282 | Low-profile compact disk case | Chen-Cheng Chang | 2001-09-04 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6283280 | Compact disc container with locking tube | Chen-Cheng Chang | 2001-09-04 |
| 6283282 | Low-profile compact disk case | Chen-Cheng Chang | 2001-09-04 |