| Patent | Date |
|---|
Fluid treatment apparatus and method of using same
Grant 9,878,289 - Pierik , et al. January 30, 2 | 2018-01-30 |
Variable valve actuation system including an accumulator and a method for controlling the variable valve actuation system
Grant 9,863,293 - Pierik January 9, 2 | 2018-01-09 |
System and method for controlling airflow through a ventilation system of an engine when cylinders of the engine are deactivated
Grant 9,611,769 - Pierik , et al. April 4, 2 | 2017-04-04 |
Lubrication system thermostat, and method thereof
Grant 9,523,465 - Pierik December 20, 2 | 2016-12-20 |
System and method for calibrating a valve lift sensor and evaluating a valve lift sensor and a hydraulic valve actuator
Grant 9,512,749 - Pierik December 6, 2 | 2016-12-06 |
Oil pump control systems and methods for noise minimization
Grant 9,353,655 - Demarest , et al. May 31, 2 | 2016-05-31 |
Positive crankcase ventilation system
Grant 8,955,500 - Spix , et al. February 17, 2 | 2015-02-17 |
Lubrication System Thermostat, And Method Thereof
App 20140318640 - Pierik; Ronald J. | 2014-10-30 |
System And Method For Controlling Airflow Through A Ventilation System Of An Engine When Cylinders Of The Engine Are Deactivated
App 20140277996 - PIERIK; RONALD J. ; et al. | 2014-09-18 |
Oil Pump Control Systems And Methods For Noise Minimization
App 20140251273 - Demarest; Jeremy T. ; et al. | 2014-09-11 |
Systems And Methods For Controlling Cylinder Deactivation And Accessory Drive Tensioner Arm Motion
App 20140163839 - Staley; Eric D. ; et al. | 2014-06-12 |
Engine Including Exhaust Gas Recirculation Injection System
App 20140144413 - PIERIK; Ronald J. ; et al. | 2014-05-29 |
Fluid Treatment Apparatus And Method Of Using Same
App 20140076792 - Pierik; Bradley S. ; et al. | 2014-03-20 |
Variable Valve Actuation System Including An Accumulator And A Method For Controlling The Variable Valve Actuation System
App 20140034139 - Pierik; Ronald J. | 2014-02-06 |
System And Method For Calibrating A Valve Lift Sensor And Evaluating A Valve Lift Sensor And A Hydraulic Valve Actuator
App 20130325290 - Pierik; Ronald J. | 2013-12-05 |
Camshaft phaser having designated contact vane
Grant 7,556,000 - Pierik , et al. July 7, 2 | 2009-07-07 |
Camshaft phaser having designated contact vane
Grant 7,401,582 - Pierik , et al. July 22, 2 | 2008-07-22 |
Camshaft phaser having designated contact vane
App 20070186887 - Pierik; Ronald J. ; et al. | 2007-08-16 |
Method and apparatus for actuating a cam phaser
Grant 6,932,038 - Pierik August 23, 2 | 2005-08-23 |
Method and apparatus for adjusting the angular position of a collar on a shaft
Grant 6,877,465 - Pierik April 12, 2 | 2005-04-12 |
Frameless variable valve actuation mechanism
Grant 6,868,811 - Koro , et al. March 22, 2 | 2005-03-22 |
Method and apparatus for actuating a cam phaser
App 20050039713 - Pierik, Ronald J. | 2005-02-24 |
Method and apparatus for actuating a cam phaser
Grant 6,799,544 - Pierik October 5, 2 | 2004-10-05 |
Variable valve actuation mechanism having partial wrap bearings for output cams and frames
Grant 6,786,185 - Pierik September 7, 2 | 2004-09-07 |
Pinless roller finger follower
Grant 6,758,180 - Pierik July 6, 2 | 2004-07-06 |
Variable valve actuating mechanism having torsional lash control spring
Grant 6,745,734 - Pierik June 8, 2 | 2004-06-08 |
Extended duration cam lobe for variable valve actuation mechanism
Grant 6,736,095 - Pierik May 18, 2 | 2004-05-18 |
Method and apparatus for setting valve lift within a cylinder
Grant 6,736,096 - Pierik May 18, 2 | 2004-05-18 |
Camshaft phaser having an external bias spring
Grant 6,732,690 - Pierik , et al. May 11, 2 | 2004-05-11 |
Locking pin mechanism for a camshaft phaser
Grant 6,722,329 - Pierik , et al. April 20, 2 | 2004-04-20 |
Retention bolt for a cam phaser
Grant 6,722,330 - Pierik , et al. April 20, 2 | 2004-04-20 |
Cam phaser hydraulic seal assembly
Grant 6,691,656 - Pierik , et al. February 17, 2 | 2004-02-17 |
Frameless variable valve actuation mechanism
App 20040020454 - Koro, Fuat ; et al. | 2004-02-05 |
Offset variable valve actuation mechanism
Grant 6,655,330 - Pierik December 2, 2 | 2003-12-02 |
Camshaft phaser having designated contact vane
App 20030217720 - Pierik, Ronald J. ; et al. | 2003-11-27 |
Locking pin mechanism for a camshaft phaser
App 20030217717 - Pierik, Ronald J. ; et al. | 2003-11-27 |
Retention bolt for a cam phaser
App 20030217719 - Pierik, Ronald J. ; et al. | 2003-11-27 |
Camshaft phaser having an external bias spring
App 20030217718 - Pierik, Ronald J. ; et al. | 2003-11-27 |
Variable Valve Actuating Mechanism Having Torsional Lash Control Spring
App 20030217715 - Pierik, Ronald J. | 2003-11-27 |
Eccentric grooves for intersecting longitudinal fluid supply passages
Grant 6,622,676 - Pierik , et al. September 23, 2 | 2003-09-23 |
Offset Varibale Valve Actuation Mechanism
App 20030172887 - Pierik, Ronald J. | 2003-09-18 |
Variable valve actuation mechanism having partial wrap bearings for output cams and frames
App 20030172886 - Pierik, Ronald J. | 2003-09-18 |
Method and apparatus for setting valve lift within a cylinder
App 20030154940 - Pierik, Ronald J. | 2003-08-21 |
Extended duration cam lobe for variable valve actuation mechanism
App 20030101951 - Pierik, Ronald J. | 2003-06-05 |
Pinless roller finger follower
App 20030101954 - Pierik, Ronald J. | 2003-06-05 |
Mechanical Lash Adjuster Apparatus For An Engine Cam
App 20020088415 - Pierik, Ronald J. | 2002-07-11 |
Mechanical Lash Control Apparatus For An Engine Cam
App 20020088418 - Pierik, Ronald J. | 2002-07-11 |
Partial internal guide for curved helical compression spring
Grant 6,382,153 - Rohe , et al. May 7, 2 | 2002-05-07 |
Low friction variable valve actuation device
App 20020007810 - Pierik, Ronald J. | 2002-01-24 |
Cam link variable valve mechanism
App 20010037782 - Pierik, Ronald J. | 2001-11-08 |
Ring gear variable valve train device
App 20010035141 - Pierik, Ronald J. | 2001-11-01 |
Actuator for variable valve mechanism
App 20010032606 - Pierik, Ronald J. | 2001-10-25 |
Crank gear variable valve actuating mechanism
App 20010025616 - Pierik, Ronald J. | 2001-10-04 |
Hydraulic actuator for variable valve mechanism
App 20010025613 - Pierik, Ronald J. | 2001-10-04 |
Belt-driven variable valve actuating mechanism
App 20010025614 - Pierik, Ronald J. | 2001-10-04 |
Linkless variable valve actuation mechanism
App 20010008128 - Pierik, Ronald J. | 2001-07-19 |
Engine timing drive with fixed and variable phasing
Grant 5,327,859 - Pierik , et al. July 12, 1 | 1994-07-12 |
Intensifier-injector for gaseous fuel for positive displacement engines
Grant 5,067,467 - Hill , et al. November 26, 1 | 1991-11-26 |
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