Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5655488 | Dual event valve control system | Keith Hampton, Don J. Krzysik | 1997-08-12 |
| 5617067 | Electromagnetic actuator having a low aspect ratio stator | Ram S. Arora, Walter K. O'Neil | 1997-04-01 |
| 5226389 | Direct acting tappet | — | 1993-07-13 |
| 4826470 | Fluid operated chain or belt tensioning device | Mark S. Breon, Leslie L. Ecklund | 1989-05-02 |
| 4815424 | Hydraulic lash adjuster | John Page Chapman, David P. Clark | 1989-03-28 |
| 4221199 | Plural lash engine valve gear and device for selecting same | William T. Mihalic, David P. Clark | 1980-09-09 |