Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D424123 | Exercise step for aerobic exercise | — | 2000-05-02 |
| D385317 | Adjustable exercise step for aerobic exercise | — | 1997-10-21 |
| 5599258 | Adjustable exercise step and method | Michael R. Stone | 1997-02-04 |