Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11415236 | Gas pressure regulating device | Feng Zhang, Yanhua Wang, Hongbin REN | 2022-08-16 |
| 11385661 | Gas pressure regulating device | Feng Zhang, Jinghui FAN, Minxiao Dai | 2022-07-12 |