Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11183870 | On-line uninterruptible power system and operation method thereof | Chun-Chao Liao, Chao-Ching Yang, Hsun-Ping Cho, Hong-Jhih Chen | 2021-11-23 |
| 11165277 | Uninterruptible power system and operation method thereof | Lien-Hsun Ho, Chao-Ching Yang | 2021-11-02 |