Issued Patents 1997
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5697333 | Dual lift actuation means | Kynan L. Church, Jason J McConnell, Brian K. Van Deusen | 1997-12-16 |
| 5690066 | Engine valve control actuator with knee action linkage | David M. Preston | 1997-11-25 |
| 5682848 | Engine valve control system using a latchable rocker arm activated by a solenoid mechanism | David M. Preston | 1997-11-04 |
| 5660153 | Valve control system | David M. Preston, Dale Arden Stretch, Douglas J. Nielsen, Neal L. Tack | 1997-08-26 |
| 5655488 | Dual event valve control system | Don J. Krzysik, Bryce A. Buuck | 1997-08-12 |
| 5623897 | Engine valve control system using a latchable rocker arm activated by a solenoid mechanism | David M. Preston | 1997-04-29 |
| 5619958 | Engine valve control system using a latchable rocker arm | David M. Preston | 1997-04-15 |