Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8839750 | System and method for controlling hydraulic pressure in electro-hydraulic valve actuation systems | Daniel G. Brennan, Craig D. Marriott, Joel Cowgill, Kenneth James Patton | 2014-09-23 |
| 8682569 | Systems and methods for diagnosing valve lift mechanisms and oil control valves of camshaft lift systems | Andrew P. Bagnasco, Joshua D. Cowgill, Joseph R. Dulzo, Raymond Claude Turin | 2014-03-25 |
| 8590507 | Variable valve actuation control systems and methods | Craig D. Marriott | 2013-11-26 |
| 8478476 | System for detecting operating errors in a variable valve timing engine using pressure sensors | Craig D. Marriott | 2013-07-02 |
| 8290686 | Method for controlling combustion mode transitions for an internal combustion engine | Jun-Mo Kang, Hanho Yun, Allen B. Rayl, Vijay Ramappan | 2012-10-16 |
| 8220436 | HCCI/SI combustion switching control system and method | Allen B. Rayl, Jun-Mo Kang, Vijay Ramappan, Hanho Yun, Peter Kafarnik | 2012-07-17 |
| 7975668 | Spark timing and control during transitions between spark ignited combustion and homogenous charge compression ignition | Vijay Ramappan, Allen B. Rayl, Jun-Mo Kang, Peter Kafarnik, Hanho Yun | 2011-07-12 |
| 7698935 | Diagnostic system for valve actuation mechanism | Donovan L. Dibble, Kenneth J. Cinpinski, Vimesh M. Patel | 2010-04-20 |
| 7523723 | System and method for determining ethanol content in fuel | Craig D. Marriott | 2009-04-28 |
| 7444236 | Discrete variable valve lift diagnostic control system | — | 2008-10-28 |
| 7387018 | Discrete variable valve lift diagnostic systems and methods | — | 2008-06-17 |
| 7322339 | Apparent torque reserve at idle for direct injected engines | Jesse M. Gwidt, David P. Sczomak, Michael J. Lucido | 2008-01-29 |