Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6435535 | Trailer for balancing vehicle | John David Heinzmann | 2002-08-20 |
| 6367817 | Personal mobility vehicles and methods | Dean Kamen, Robert R. Ambrogi, Robert J. Duggan, Richard Kurt Heinzmann, Burl W. Amsbury +1 more | 2002-04-09 |