Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10286233 | Ergonomic back plate for self-contained breathing apparatus | Leo Wang, Yajun Zhang, Jimmy Zheng, Shelly Chen | 2019-05-14 |
| D697271 | Face mask | Clay (Pei Ning) Sun, Yajun Zhang, Eric Xia, Zhao Jin | 2014-01-07 |