Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6371456 | Seat suspension system | Norman E. Ritchie, Michael von Mayenburg, Christopher J. Sameck | 2002-04-16 |
| 6340152 | Seat suspension vibration damper | Norman E. Ritchie, Christopher J. Sameck | 2002-01-22 |