Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6474684 | Dual stage inflator | Christopher Ludwig, Robert S. Willhelm, John E. Bednarz, Glade Hansen, Gregory Scaven | 2002-11-05 |
| 6126197 | Lightweight discoidal filterless air bag inflator | Robert S. Willhelm | 2000-10-03 |