Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8257209 | Versatile variable gear ratio transmission | Robert S. Siegwart, Thomas O'Donnell | 2012-09-04 |
| 8083621 | Variable speed transmission | — | 2011-12-27 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8257209 | Versatile variable gear ratio transmission | Robert S. Siegwart, Thomas O'Donnell | 2012-09-04 |
| 8083621 | Variable speed transmission | — | 2011-12-27 |