DP

David A. Pierpont

Caterpillar: 47 patents #29 of 8,398Top 1%
ED Electro-Motive Diesel: 1 patents #83 of 163Top 55%
📍 Dunlap, IL: #6 of 474 inventorsTop 2%
🗺 Illinois: #877 of 84,256 inventorsTop 2%
Overall (All Time): #58,218 of 4,157,543Top 2%
48
Patents All Time

Issued Patents All Time

Showing 26–48 of 48 patents

Patent #TitleCo-InventorsDate
7006910 Engine power loss compensation Scott R. Schuricht, Travis E. Barnes 2006-02-28
6928969 System and method for controlling engine operation Jason K. Bloms, James J. Faletti, Scott Leman, James R. Weber 2005-08-16
6912458 Variable valve actuation control for operation at altitude Thomas J. Crowell 2005-06-28
6883314 Cooling of engine combustion air James J. Callas, Gerald N. Coleman, James J. Faletti, James R. Weber 2005-04-26
6837212 Fuel allocation at idle or light engine load Jason K. Bloms, Brian G. McGee, Jeffrey Smith 2005-01-04
6807929 Engine valve actuation system and method Jason K. Bloms, James J. Faletti, Richard H. Holtman, Scott Leman 2004-10-26
6799552 System and method for controlling engine operation Thomas J. Crowell 2004-10-05
6658848 Airflow system for engine with series turbochargers 2003-12-09
6659092 Bypass assembly with annular bypass venturi for an exhaust gas recirculation system Gerald N. Coleman, Dennis D. Feucht, Michael P. Harmon, Matthew D. Rampenthal 2003-12-09
6640542 Bypass venturi assembly with single shaft actuator for an exhaust gas recirculation system Gerald N. Coleman, Dennis D. Feucht, Michael P. Harmon, Matthew D. Rampenthal 2003-11-04
6609373 Exhaust gas recirculation system with variable geometry turbine and bypass venturi assembly Gerald N. Coleman, Dennis D. Feucht, Matthew D. Rampenthal, Michael P. Harmon 2003-08-26
6484499 Twin variable nozzle turbine exhaust gas recirculation system Gerald N. Coleman, James J. Faletti, Dennis D. Feucht 2002-11-26
6484500 Two turbocharger engine emission control system Gerald N. Coleman, Dennis D. Feucht, James J. Faletti 2002-11-26
6460519 Twin turbine exhaust gas re-circulation system having fixed geometry turbines 2002-10-08
6439212 Bypass venturi assembly and elbow with turning vane for an exhaust gas recirculation system Gerald N. Coleman, Dennis D. Feucht, Michael P. Harmon, Matthew D. Rampenthal 2002-08-27
6418721 Two turbocharger exhaust gas re-circulation system having a first stage variable nozzle turbine Gerald N. Coleman, James J. Faletti, Dennis D. Feucht 2002-07-16
6412279 Twin turbine exhaust gas re-circulation system having a second stage variable nozzle turbine Gerald N. Coleman, James J. Faletti, Dennis D. Feucht 2002-07-02
6397598 Turbocharger system for an internal combustion engine 2002-06-04
6378509 Exhaust gas recirculation system having multifunction valve Dennis D. Feucht 2002-04-30
6360732 Exhaust gas recirculation cooling system Brett M. Bailey 2002-03-26
6324847 Dual flow turbine housing for a turbocharger in a divided manifold exhaust system having E.G.R. flow 2001-12-04
6321537 Exhaust gas recirculation system in an internal combustion engine Gerald N. Coleman, James J. Faletti, Dennis D. Feucht 2001-11-27
6220233 Exhaust gas recirculation system having variable valve timing and method of using same in an internal combustion engine 2001-04-24