Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12365503 | Cotton stuffing machine | Chang-Cheng Chen, Yung S. Liu | 2025-07-22 |
| 11358177 | System and method for detecting a cover with an abnormal condition | Chia-Kai Chang, Chang-Cheng Chen | 2022-06-14 |