Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12138491 | Powered exhaust apparatus for a personal protection respiratory device | Desmon T. Curran, John A. Duff, Jason A. Graves, Reyad A. Abdulqader | 2024-11-12 |
| 11554233 | Powered apparatus for a personal protection respiratory device | John A. Duff, Jason A. Graves, Henning T. Urban | 2023-01-17 |
| 11052208 | Exhaust valve shroud for a personal protection respiratory device | Desmond T. Curran, Sabeel Ullah | 2021-07-06 |