Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9115785 | Compact drive mechanism with selective reverse power output | Radu Kramer, David E. Parker | 2015-08-25 |
| 8702115 | Drive mechanism and bicycle drive system | Radu Kramer | 2014-04-22 |