Issued Patents 2021
Showing 1–1 of 1 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 |
Showing 1–1 of 1 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 |