Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6703742 | Electric motor with rotor being a drive wheel | John Richard Irwin | 2004-03-09 |
| 6428050 | Motorized skate | John Richard Irwin | 2002-08-06 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6703742 | Electric motor with rotor being a drive wheel | John Richard Irwin | 2004-03-09 |
| 6428050 | Motorized skate | John Richard Irwin | 2002-08-06 |