Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10433263 | Wireless transmission system capable of automatically adjusting transmission power | Yi-Shing Chang | 2019-10-01 |
| 7521615 | String tension adjustment structure | Chuan-Nen Shih | 2009-04-21 |