Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7510200 | Wheelchair | — | 2009-03-31 |
| 7090240 | Tiltable seating apparatus for wheelchair | — | 2006-08-15 |
| 6886843 | Seating frame for wheelchair | — | 2005-05-03 |
| 6607250 | Caster block and wheel lock for wheelchair | — | 2003-08-19 |
| 6331036 | Axle mount for wheelchair | — | 2001-12-18 |
| 6139037 | Wheelchair | — | 2000-10-31 |
| 5884928 | Wheelchair | — | 1999-03-23 |
| 5301964 | Wheelchair | — | 1994-04-12 |
| 5174418 | Wheel lock mechanism for a wheelchair | Son Le | 1992-12-29 |