Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D335839 | Seating unit for a wheelchair | A. Scott Robertson, Robert W. Lishman | 1993-05-25 |
| 5176393 | Modular wheelchair | A. Scott Robertson, Robert W. Lishman | 1993-01-05 |
| 5167048 | Caster wheel retention device | Robert W. Lishman, Scott Dentino | 1992-12-01 |
| D331210 | Wheelchair | A. Scott Robertson, Robert W. Lishman | 1992-11-24 |
| 5143391 | Modular wheelchair | A. Scott Robertson, Robert W. Lishman | 1992-09-01 |
| 5131672 | Camber adjustment fitting for a wheelchair | A. Scott Robertson | 1992-07-21 |
| 5076602 | Seating system for a wheel chair | A. Scott Robertson, Robert W. Lishman | 1991-12-31 |