Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5967920 | Hydraulic tensioner with a bore cup | Roger T. Simpson | 1999-10-19 |
| 5813935 | Chain guide with extruded wear face | J. Christian Haesloop, Bradley F. Adams | 1998-09-29 |
| 5718650 | Hydraulic tensioner with porous vent | Franklin R. Smith | 1998-02-17 |
| 5690569 | Single piece reinforced chain guide | Timothy J. Ledvina | 1997-11-25 |
| 5643117 | Hydraulic tensioner with check valve vent | — | 1997-07-01 |
| 5628701 | Hydraulic tensioner with sealing element | Roger T. Simpson | 1997-05-13 |
| 5470285 | Compact continuously variable transmission layout for rear wheel drive vehicles | Karl F. Schneider, Donn K. Fairbank, Romas B. Spokas, Bradley L. Keeney | 1995-11-28 |
| 5361735 | Belt driven variable camshaft timing system | Roger P. Butterfield, Franklin R. Smith | 1994-11-08 |
| 5139468 | Two speed engine accessory drive with plastic planet gears | Bruce A. Churchill | 1992-08-18 |
| 5107804 | Variable camshaft timing for internal combustion engine | Thomas Becker, Roger P. Butterfield, Franklin R. Smith | 1992-04-28 |
| 5046460 | Variable camshaft timing for internal combustion engine | Roger P. Butterfield, Franklin R. Smith | 1991-09-10 |