Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11111918 | Rotary device, rotary system, and fluid machinery, to which press-actuated gate valve mechanism is applied | Qihuai Yao | 2021-09-07 |
| 10215025 | Rotation device and rotor compressor and fluid motor having the same | Qihuai Yao | 2019-02-26 |
| 9322272 | Planetary rotary type fluid motor or engine and compressor or pump | Qihuai Yao | 2016-04-26 |