Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 7597640 | Long mechanical tensioner with a compliant blade spring | George L. Markley, Mark M. Wigsten | 2009-10-06 | $46,711,000 |
| 7513843 | Mechanical chain tensioner with ratcheting device | George L. Markley | 2009-04-07 | $38,960,000 |
| 7476168 | Pivoting mechanical tensioner with cross strand damping | George L. Markley, Mark M. Wigsten | 2009-01-13 | $26,563,000 |