Issued Patents All Time
Showing 25 most recent of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7882814 | Inner arm stop for a switchable rocker arm | Nick J. Hendriksma, Michael E. McCarroll | 2011-02-08 |
| 7757648 | Switchable valve train member | Nick J. Hendriksma | 2010-07-20 |
| 7673601 | Valve lifter assembly for selectively deactivating a cylinder | Nick J. Hendriksma, Michael J. Fox | 2010-03-09 |
| 7610887 | Valve-deactivating hydraulic lifter having a contoured pin housing bottom surface | — | 2009-11-03 |
| 7455040 | Hydraulic circuit for switchable cam followers | Nick J. Hendriksma, Michael J. Dinkel | 2008-11-25 |
| 7409941 | Valve-deactivating hydraulic lifter having a vented internal lost motion spring | Michael E. McCarroll | 2008-08-12 |
| 7395792 | Deactivation roller hydraulic valve lifter | Nick J. Hendriksma | 2008-07-08 |
| 7308879 | Deactivation roller hydraulic valve lifter | Nick J. Hendriksma | 2007-12-18 |
| 7296548 | Deactivation roller hydraulic valve lifter | Nick J. Hendriksma | 2007-11-20 |
| 7263956 | Valve lifter assembly for selectively deactivating a cylinder | Nick J. Hendriksma, Michael J. Fox | 2007-09-04 |
| 7246585 | Valve-deactivating hydraulic lifter having a vented internal lost motion spring | Michael E. McCarroll | 2007-07-24 |
| 7243629 | Hydraulic valve lifter assembly | — | 2007-07-17 |
| 7117833 | Readily-fillable hydraulic valve lifter assembly | Daniel F. Smith, Thomas H. Lichti | 2006-10-10 |
| 7104232 | Deactivation roller hydraulic valve lifter | Nick J. Hendriksma | 2006-09-12 |
| 7007651 | Anti-rotation guide for a deactivation hydraulic valve lifter | — | 2006-03-07 |
| 6976463 | Anti-rotation deactivation valve lifter | Nick J. Hendriksma, David Draeger, William D. Bauman | 2005-12-20 |
| 6920857 | Deactivation hydraulic valve lifter having a pressurized oil groove | — | 2005-07-26 |
| 6866014 | Anti-rotation guide for a deactivation hydraulic valve lifter | — | 2005-03-15 |
| 6814040 | Deactivation roller hydraulic valve lifter | Nick J. Hendriksma | 2004-11-09 |
| 6802288 | Deactivation hydraulic valve lifter having a pressurized oil groove | — | 2004-10-12 |
| 6748914 | Refillable metering valve for hydraulic valve lifters | Carl R. Kangas | 2004-06-15 |
| 6668776 | Deactivation roller hydraulic valve lifter | Nick J. Hendriksma | 2003-12-30 |
| 6578535 | Valve-deactivating lifter | Albert C. Stone, Carl R. Kangas | 2003-06-17 |
| 6513470 | Deactivation hydraulic valve lifter | Nick J. Hendriksma | 2003-02-04 |
| 6497207 | Deactivation roller hydraulic valve lifter | Albert C. Stone, Carl R. Kangas, David McCarthy | 2002-12-24 |