Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10988207 | Bicycle gearbox having segmented sprockets | David M. Earle, William A. Hilgenberg, David J. Allen, Ryan Kent Miller | 2021-04-27 |
| 10989281 | Bicycle gearbox having segmented sprockets | David J. Allen, David M. Earle, William A. Hilgenberg, Rainer Pokorny | 2021-04-27 |