Issued Patents 2023
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D986409 | Breathing apparatus | Alexander Virr, Xiaoyi Fu, John Michael Snow, Dan Kao | 2023-05-16 |
| 11642553 | Portable personal respirator and use thereof | Alexander Virr, Dan Kao, John Michael Snow, Chayut Orapinpatipat, Millen James Rath-May | 2023-05-09 |