Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1023294 | Backframe for self-contained breathing apparatus | William P. Atwood, Michael Meyer, Barry Lewin, Martin Wilcockson | 2024-04-16 |
| 11668311 | Blowers with variable nozzles | Hang Man Cho, Michael Coltharp, Dong Heon Han, Peter Kaminski, Peyton Lee | 2023-06-06 |
| 10507341 | Respirator filter interface | — | 2019-12-17 |
| 10220224 | Switchable exhale filter system | — | 2019-03-05 |
| 10130832 | Automatic switchable exhale cartridge | Noel Toogood | 2018-11-20 |
| 9968806 | Carrying plate for breathing apparatus | John P. Kearns, Robert Charles Sutton | 2018-05-15 |
| 9604080 | Carrying plate for breathing apparatus | John P. Kearns, Robert Charles Sutton | 2017-03-28 |