Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7803080 | High strength and stiffness silent chain with improved noise | Timothy J. Ledvina, Shawn McGrogan, Wes Park | 2010-09-28 |
| 6554728 | Fastenerless chain snubber | Roger Young, Roger P. Butterfield | 2003-04-29 |