Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8333389 | Wheelchair stair assist apparatus | Rick Guindon, Kenneth J. Muderlak, Todd J. Muderlak | 2012-12-18 |
| 7988157 | Wheelchair stair assist apparatus | Rick Guindon, Kenneth J. Muderlak, Todd J. Muderlak | 2011-08-02 |
| 4962941 | Wheelchair apparatus | — | 1990-10-16 |