RP

Ronald J. Pierik

Delphi Technologies: 33 patents #24 of 4,124Top 1%
General Motors: 20 patents #670 of 18,328Top 4%
UC University Of British Columbia: 1 patents #582 of 1,308Top 45%
Overall (All Time): #46,160 of 4,157,543Top 2%
55
Patents All Time

Issued Patents All Time

Showing 25 most recent of 55 patents

Patent #TitleCo-InventorsDate
9878289 Fluid treatment apparatus and method of using same Bradley S Pierik, Kevin T Reilly 2018-01-30
9863293 Variable valve actuation system including an accumulator and a method for controlling the variable valve actuation system 2018-01-09
9611769 System and method for controlling airflow through a ventilation system of an engine when cylinders of the engine are deactivated Thomas A. Spix 2017-04-04
9523465 Lubrication system thermostat, and method thereof 2016-12-20
9512749 System and method for calibrating a valve lift sensor and evaluating a valve lift sensor and a hydraulic valve actuator 2016-12-06
9353655 Oil pump control systems and methods for noise minimization Jeremy T. Demarest, Eric D. Staley 2016-05-31
8955500 Positive crankcase ventilation system Thomas A. Spix 2015-02-17
8776741 Engine assembly including cam phaser assembly aid pin Timothy L. Neal, Hong Wai Nguyen, Adrian E. Towns 2014-07-15
8683965 Engine assembly including camshaft actuator 2014-04-01
8448617 Engine including camshaft with partial lobe Glenn E. Clever, Rodney K. Elnick 2013-05-28
8096275 Camshaft having a tuned mass damper Craig D. Marriott, Hong Wai Nguyen 2012-01-17
8047065 Diagnostic system for valve actuation camshaft driven component compensation Kenneth J. Cinpinski, Craig D. Marriott, Andrew P. Bagnasco 2011-11-01
7980216 Rocker arm assembly having slider roller oil pumping features Rodney K. Elnick 2011-07-19
7849828 Rocker arm assembly Rodney K. Elnick 2010-12-14
7827944 System for controlling the response time of a hydraulic system 2010-11-09
7556000 Camshaft phaser having designated contact vane Dominic Borraccia 2009-07-07
7401582 Camshaft phaser having designated contact vane Dominic Borraccia 2008-07-22
6932038 Method and apparatus for actuating a cam phaser 2005-08-23
6877465 Method and apparatus for adjusting the angular position of a collar on a shaft 2005-04-12
6868811 Frameless variable valve actuation mechanism Fuat Koro, Thomas H. Fischer 2005-03-22
6799544 Method and apparatus for actuating a cam phaser 2004-10-05
6786185 Variable valve actuation mechanism having partial wrap bearings for output cams and frames 2004-09-07
6758180 Pinless roller finger follower 2004-07-06
6745734 Variable valve actuating mechanism having torsional lash control spring 2004-06-08
6736095 Extended duration cam lobe for variable valve actuation mechanism 2004-05-18