Issued Patents 2018
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10125849 | Chain drive tensioner spring force control mechanism | Mark Patton, Dale N. Smith | 2018-11-13 |
| 10077825 | Tensioner with spring force control | Dale N. Smith, Robert G Williamson, Fenton O'Shea | 2018-09-18 |
| 9879764 | Chain drive tensioner spring force control mechanism | Mark Patton, Dale N. Smith | 2018-01-30 |