Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7303203 | Ergonomic wheelchair hand rim | William Mark Richter, Peter W. Axelson | 2007-12-04 |
| 6213558 | Pelvic stabilization device | Peter W. Axelson, William Mark Richter | 2001-04-10 |