Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8066604 | Articulated chain for drive transmission in bicycles | Ermanno Righi | 2011-11-29 |
| 7895914 | Command device for a bicycle gear change | Ermanno Righi | 2011-03-01 |
| 7549662 | Bicycle change gear mechanism | Ermanno Righi | 2009-06-23 |