Inventor
John N. Chi
Inventor
Columbus, IN, US
Overview
Patents· 23 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
Y02Tprimary
Y02TClimate change mitigation technologies related to transportation27%
F02DControlling combustion engines15%
F01NGas-flow silencers or exhaust apparatus for machines or engines in general14%
F02BInternal-combustion piston engines12%
B01DSeparation11%
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof7%
G01FMeasuring volume, volume flow, mass flow or liquid level4%
G01MTesting static or dynamic balance of machines or structures4%
G01PMeasuring linear or angular speed, acceleration, deceleration, or shock4%
Y02ATechnologies for adaptation to climate change4%
PatentTitleYear
9,890,717'System and method for estimating turbocharger operating speed'20189,778,143'System and method for estimating engine exhaust manifold operating parameters'20179,528,432'System for controlling an air handling system including an electric motor assisted variable geometry turbocharger'20169,453,468'System and method for estimating turbocharger operating speed'20169,181,905'System for controlling an air handling system including an electric pump-assisted exhaust gas recirculation'20159,062,635'System and method for estimating engine exhaust manifold operating parameters'20158,887,693'System and method for estimating turbocharger compressor inlet air flow rate'20148,892,332'System and method for estimating turbocharger operating speed'20148,783,030'System for controlling an air handling system including an electric pump-assisted turbocharger compressor'20148,677,748'Fresh air flow estimation'20148,567,192'System for controlling an air handling system including a dual-stage variable geometry turbocharger'20138,356,471'Apparatus, system, and method for controlling reductant dosing in an SCR catalyst system'20138,322,129'Method for controlling turbine outlet temperatures in a diesel engine'20128,281,572'Apparatus, system, and method for reducing NOx emissions from an engine system'20128,256,208'Apparatus, system, and method for reducing NOx emissions on an SCR catalyst'20128,225,595'Apparatus, system, and method for estimating an NOx conversion efficiency of a selective catalytic reduction catalyst'20128,201,394'Apparatus, system, and method for NOx signal correction in feedback controls of an SCR system'20128,181,450'Apparatus, system, and method for reducing NOx emissions on an SCR catalyst using ammonia storage and slip control'20128,161,730'Apparatus, system, and method for reducing NOx emissions on an SCR catalyst'20128,141,340'Apparatus, system, and method for determining the degradation of an SCR catalyst'20128,109,079'Apparatus, system, and method for controlling ammonia slip from an SCR catalyst'20128,074,445'Apparatus, system, and method for reducing NOx emissions on an SCR catalyst'20117,784,451'Apparatus, system, and method for controlling exhaust emission using a pre-filter'2010Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2010–2013Patents assigned to CUMMINS IP INC (11)· patent assignee history
2010–2018Based in Columbus, IN, US· patent location history
2011–2016Patents assigned to CHI JOHN N (19)· patent assignee history
2011–2014Patents assigned to GARIMELLA PHANINDRA (9)· patent assignee history
2012–2018Patents assigned to CUMMINS INC (12)· patent assignee history
2012–2016Patents assigned to FRAZIER TIMOTHY R (7)· patent assignee history
2012–2013Based in Raleigh, NC, US· patent location history
2013–2017Based in Dubuque, IA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CHI JOHN Nself | 19 | 2011–2016 |
| CUMMINS INC | 12 | 2012–2018 |
| CUMMINS IP INC | 11 | 2010–2013 |
| GARIMELLA PHANINDRA | 9 | 2011–2014 |
| FRAZIER TIMOTHY R | 7 | 2012–2016 |
Locations
| Location | Patents | Span |
|---|---|---|
| Columbus, IN, US | 14 | 2010–2018 |
| Dubuque, IA, US | 7 | 2013–2017 |
| Raleigh, NC, US | 2 | 2012–2013 |