Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11828206 | Hydraulic tensioner with external pin and ratchet mechanism | Paul Freemantle | 2023-11-28 |
| 11402000 | Tensioner with spring force control in a second bore | Kevin B. Todd | 2022-08-02 |
| 11078992 | Chain drive tensioner spring force control mechanism | Kevin B. Todd, Mark Patton | 2021-08-03 |
| 10781892 | Press-fit check valve for a hydraulic tensioner reservoir with metered backflow | Keith B. Cobb, Matthew W. Crump | 2020-09-22 |
| 10738860 | Hydraulic tensioner with controllable inlet pressure | Mark M. Wigsten, Kevin B. Todd, Sean Simmons, Seongdo HONG | 2020-08-11 |
| 10677325 | Chain drive tensioner spring force control mechanism | Kevin B. Todd, Mark Patton | 2020-06-09 |
| 10612629 | Tensioner with spring force control in a second bore | Kevin B. Todd | 2020-04-07 |
| 10539051 | Valve operating system providing variable valve lift and/or variable valve timing | Mark M. Wigsten | 2020-01-21 |
| 10436291 | Tensioner with spring force control in a second bore | Kevin B. Todd | 2019-10-08 |
| 10125849 | Chain drive tensioner spring force control mechanism | Kevin B. Todd, Mark Patton | 2018-11-13 |
| 10077825 | Tensioner with spring force control | Kevin B. Todd, Robert G Williamson, Fenton O'Shea | 2018-09-18 |
| 9879764 | Chain drive tensioner spring force control mechanism | Kevin B. Todd, Mark Patton | 2018-01-30 |
| 9874267 | Series arrangement of hydraulic chain tensioner and ratchet | Mark M. Wigsten | 2018-01-23 |
| 9683637 | Tensioner with spring force control in a second bore | Kevin B. Todd | 2017-06-20 |
| 9618096 | Chain or belt tensioner with a ratchet that deactivates | George L. Markley, Simon Barrette, Joseph P. Goodsell | 2017-04-11 |
| 9605732 | Expanding piston hydraulic chain tensioner | Mark M. Wigsten | 2017-03-28 |
| 9377087 | Chain drive tensioner spring force control mechanism | Kevin B. Todd, Mark Patton | 2016-06-28 |
| 9377088 | Chain drive tensioner spring force control mechanism | Kevin B. Todd, Mark Patton | 2016-06-28 |
| 9360088 | Chain drive tensioner spring force control mechanism | Kevin B. Todd, Mark Patton | 2016-06-07 |
| 9267579 | Chain or belt tensioner with a ratchet that deactivates | George L. Markley, Simon Barrette, Joseph P. Goodsell | 2016-02-23 |
| 8052559 | Tensioner with two way damper | Mark M. Wigsten | 2011-11-08 |