Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8303256 | Blade pitch driving apparatus for wind driven generator | Zen-Jey Guey, Yun-Yuan Chang | 2012-11-06 |
| 7982329 | Vertical axis wind generator structure | Jung-Kuei Lin, Yun-Yuan Chang | 2011-07-19 |
| 7843079 | Power generating device capable of outputting at constant rotation speed | Jui-Tang Tseng, Yun-Yuan Chang, Jung-Kuei Lin | 2010-11-30 |