Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6378947 | Seating system | Alan Barber, Michael Doell, Stephen Ryan, Patricia Rigby | 2002-04-30 |
| 5857832 | Restraint seat and hoist | Michael Doell, John Hancock, Stephen Ryan | 1999-01-12 |