Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7849517 | Mounting system for accessories on a safety helmet | David C. Rogers, Duco W. Noordzij | 2010-12-14 |
| 5603117 | Protective helmet assembly | Philip B. Hudner, Jr. | 1997-02-18 |