Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6968636 | Footwear sole with a stiffness adjustment mechanism | David Grelewicz | 2005-11-29 |
| 6851204 | Footwear sole with a stiffness adjustment mechanism | David Grelewicz | 2005-02-08 |