Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7229375 | Back drive silent chain system with low profile sprocket | John Hummel | 2007-06-12 |
| 6213905 | Roller chain sprockets oriented to minimize strand length variation | David C. White | 2001-04-10 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7229375 | Back drive silent chain system with low profile sprocket | John Hummel | 2007-06-12 |
| 6213905 | Roller chain sprockets oriented to minimize strand length variation | David C. White | 2001-04-10 |