DP

David A. Pierpont

Caterpillar: 47 patents #29 of 8,398Top 1%
ED Electro-Motive Diesel: 1 patents #83 of 163Top 55%
Overall (All Time): #58,218 of 4,157,543Top 2%
48
Patents All Time

Issued Patents All Time

Showing 25 most recent of 48 patents

Patent #TitleCo-InventorsDate
11560829 Recirculation system for a power system that includes a plurality of turbochargers Jeremy Byrd, Eric Lee Schroeder, Brian R. Bell, Deborah Lee Ribordy, Jared P. Tolan +1 more 2023-01-24
11499496 Engine control system and method Ryan T. Sunley, Jason J. Rasmussen 2022-11-15
11454179 Engine brake control according to engine operating parameters Eric Lee Schroeder, Zach Engstrom, Shivangi Wagle 2022-09-27
11230992 Piston geometry for reduced smoke and cylinder head component temperatures Eric Lee Schroeder, Christopher R. Gehrke 2022-01-25
10982608 System and method for estimating engine performance Christopher R. Gehrke, Anthony T. Petrou 2021-04-20
10830168 System and method for estimating exhaust manifold temperature Christopher R. Gehrke, Travis E. Barnes, Anthony T. Petrou 2020-11-10
10787976 System and method for estimating cylinder pressure Christopher R. Gehrke, Anthony T. Petrou 2020-09-29
10641140 Hydraulic early engine exhaust valve opening system Craig P. Hittle 2020-05-05
10113503 Combustion bowl of a piston for an engine Brandon Bowditch, Adwait Joshi, Kalyana Chakravarthy Vutukuri, Abhijitsinha Dilipsinha Pawar 2018-10-30
9664093 Method for calculating exhaust temperature Brandon Abel, Adwait Joshi 2017-05-30
9328693 Piston, engine and operating method for reduced production of particulate matter John P. Timmons, Michael B. Goetzke, Kenneth M. Sinko, Reddy Pocha Siva Sankara 2016-05-03
9238996 Piston having combustion bowl shaped to balance combustion efficiency and emission properties William L. Easley, Karthikeyan C. Venkatasubramaniam, John P. Timmons 2016-01-19
9234451 Piston having combustion bowl shaped to balance combustion efficiency and emission properties Aaron Karch, Daniel Lang, James A. Subatch, Jr. 2016-01-12
8978621 Piston having combustion bowl shaped to balance combustion efficiency and emission properties William L. Easley, Karthikeyan C. Venkatasubramaniam, John P. Timmons 2015-03-17
8938962 Exhaust system 2015-01-27
8297053 Exhaust system having parallel asymmetric turbochargers and EGR John R. Gladden, John P. Timmons 2012-10-30
8234864 Engine system having multi-stage turbocharging and exhaust gas recirculation William L. Easley 2012-08-07
8196403 Turbocharger having balance valve, wastegate, and common actuator Craig P. Hittle, Jonathan Kilkenny, Stephan D. Roozenboom 2012-06-12
8176737 Exhaust system having 3-way valve John P. Timmons, William L. Easley 2012-05-15
8161747 Exhaust system having series turbochargers and EGR John P. Timmons, William L. Easley 2012-04-24
8096124 Exhaust system having parallel asymmetric turbochargers and EGR John P. Timmons, Jonathan Kilkenny 2012-01-17
7891345 EGR system having multiple discharge locations 2011-02-22
7347171 Engine valve actuator providing Miller cycle benefits Scott Leman 2008-03-25
7100552 Control system and method for variable valve actuation system Jason K. Bloms, James J. Faletti, Scott Leman, James R. Weber 2006-09-05
7063055 Engine valve actuation system and method Jason K. Bloms, James J. Faletti, Richard H. Holtman, Scott Leman 2006-06-20