Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6481023 | Suspension for protective headgear | Layton A. Wise, James A. Hendrickson, James G. Tomlinson, Paul A. Zeller | 2002-11-19 |
| 5117506 | Protective helmet | James K. Byrnes | 1992-06-02 |