Issued Patents All Time
Showing 1–7 of 7 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 |
| D968712 | Filter for breathing mask | Jonah Beard, John Michael Snow, Oliver Henry William Williams, Dan Kao, Alexander Virr | 2022-11-01 |
| 10786691 | Breathing apparatus | Dan Kao, Xiaoyi Fu, Alexander Virr, John Michael Snow | 2020-09-29 |
| D872854 | Portable respirator | Alexander Virr, Dan Kao, John Michael Snow, Chayut Orapinpatipat, Millen James Rath-May | 2020-01-14 |
| 10188880 | Filter assembly for a breathing apparatus | Alexander Virr, Xiaoyi Fu, Dan Kao, John Michael Snow | 2019-01-29 |
| D562168 | Meter | Peter Kerr | 2008-02-19 |