Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8408172 | High efficiency lift profiler for an internal combustion engine | Jongmin Lee | 2013-04-02 |
| 8276556 | Continuously variable valvetrain actuator having a torque-compensating mechanism | Michael Knauf, Hermes A. Fernandez | 2012-10-02 |
| 7685980 | System for selectively varying engine valve open duration | Jongmin Lee, Edward S. Suh, Michael Knauf | 2010-03-30 |
| 7409934 | System for variable valvetrain actuation | Jongmin Lee | 2008-08-12 |
| 7363893 | System for variable valvetrain actuation | Richard B. Roe, Jongmin Lee, Jeffrey S. Gutterman | 2008-04-29 |
| 6988473 | Variable valve actuation mechanism having an integrated rocker arm, input cam follower and output cam body | Fuat Koro, David J. Trapasso, Thomas H. Fischer, Richard B. Roe | 2006-01-24 |
| 6401677 | Cam rocker variable valve train device | Ronald J. Pierik | 2002-06-11 |
| 6382153 | Partial internal guide for curved helical compression spring | Ronald J. Pierik, Thomas H. Fischer, William R. Haslett | 2002-05-07 |
| 5937809 | Variable valve timing mechanisms | Ronald J. Pierik | 1999-08-17 |
| 5687698 | Exhaust gas recirculation valve | Noreen Louise Mastro | 1997-11-18 |