Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6619285 | Ambient air breathing device | Steven James Herberholt | 2003-09-16 |
| 6035891 | Emergency air system | Steven James Herberholt | 2000-03-14 |
| 5730121 | Emergency air system | Steven James Herberholt | 1998-03-24 |