Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8517393 | Cleat assembly, belt, track, or like surface including an array of traction-enhancing cleats | — | 2013-08-27 |
| 6857490 | Stair-climbing wheelchair | — | 2005-02-22 |
| 5813948 | Walker | James A. Reynolds | 1998-09-29 |
| 5158309 | Stair climbing apparatus for collapsible wheelchair | — | 1992-10-27 |