Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10316987 | Fixed lever and pin assembly for stabilizing gas flow and pressure regulation of a fluid regulator | Song Xiaozhang, Zhu Chenchen, Ji Feifei | 2019-06-11 |
| 10222811 | Lever assembly with a damper for a fluid regulator | Ji Feifei, Song Xiaozhang | 2019-03-05 |