Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10602799 | Athletic shoe with energy return system | F N Chalk, Jr., James Kuangcheng Tsen | 2020-03-31 |
| D798036 | Shoe sole | — | 2017-09-26 |
| 7730640 | High performance boot | Douglas E. Clark, David E. Miller, Christopher J. Pawlus | 2010-06-08 |
| 7631440 | Shoe with anatomical protection | Martin Keen | 2009-12-15 |
| 7441351 | Footwear for hostile environments | Douglas E. Clark, Jason Nevens | 2008-10-28 |
| 7347012 | Shoe with lacing | Douglas E. Clark, Martin Keen, Christopher Adam, Michael P. Kirk | 2008-03-25 |
| 7320189 | Shoe with lacing | Douglas E. Clark, Martin Keen | 2008-01-22 |
| 6192607 | Insole assembly for footwear | Paul P. Kolada, Terry M. Birchler, Michael J. Painter, Jeffrey C. Pisciotta | 2001-02-27 |
| D356438 | Shoe sole | Joseph R. Frazier, Jr. | 1995-03-21 |