Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5581820 | Head impact force diversion system with transfer arm | Rudolph Cartwright | 1996-12-10 |
| 5566399 | Head impact force diversion system with layered shell | Rudolph Cartwright | 1996-10-22 |
| 5261125 | Head impact force diversion system | Rudolph Cartwright | 1993-11-16 |