Inventor

Kevin P. Duffy

Inventor

Metamora, IL, US

Overview

31→

Patents

2002–2014

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 31 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

Y02Tprimary

Y02TClimate change mitigation technologies related to transportation26%

F02DControlling combustion engines23%

F02BInternal-combustion piston engines19%

F02MSupplying combustion engines in general with combustible mixtures or constituents thereof15%

F01LCyclically operating valves for machines or engines5%

F01NGas-flow silencers or exhaust apparatus for machines or engines in general5%

C10LFuels not otherwise provided for2%

B60KArrangement or mounting of propulsion units or of transmissions in vehicles1%

B60LPropulsion of electrically-propelled vehicles1%

B60WConjoint control of vehicle sub-units of different type or different function1%

PatentTitleYear

8,669,402'Fuel compositions'2014 8,069,835'Internal combustion engine and operating method therefor'2011 7,661,263'Method of operating an internal combustion engine'2010 7,487,663'Method for selecting fuel to both optimize the operating range and minimize the exhaust emissions of HCCI engines'2009 7,469,181'High load operation in a homogeneous charge compression ignition engine'2008 7,422,000'Method of transitioning between operating modes in an internal combustion engine'2008 7,380,540'Dynamic control of a homogeneous charge compression ignition engine'2008 7,377,254'Extending operating range of a homogeneous charge compression ignition engine via cylinder deactivation'2008 7,377,250'System and method for balancing an engine during cylinder cutout'2008 7,377,270'Exhaust gas recirculation in a homogeneous charge compression ignition engine'2008 RE040144'Method and apparatus for delivering multiple fuel injections to the cylinder of an internal combustion engine'2008 7,252,054'Combustion engine including cam phase-shifting'2007 7,219,649'Engine system and method of operating same over multiple engine load ranges'2007 7,210,640'Fuel injector spray alteration through a moveable tip sleeve'2007 7,201,121'Combustion engine including fluidically-driven engine valve actuator'2007 7,201,137'Mixed mode control method and engine using same'2007 7,198,024'Low emissions compression ignited engine technology'2007 7,191,743'Air and fuel supply system for a combustion engine'2007 7,178,492'Air and fuel supply system for combustion engine'2007 7,131,402'Method for controlling exhaust emissions from direct injection homogeneous charge compression ignition engines'2006 6,948,482'Engine cylinder temperature control'2005 6,845,747'Method of utilizing multiple fuel injections to reduce engine emissions at idle'2005 6,843,231'Cylinder to cylinder balancing using intake valve actuation'2005 6,691,671'Method and apparatus for delivering multiple fuel injections to the cylinder of an internal combustion engine'2004 6,651,618'Air and fuel supply system for combustion engine'2003 6,606,974'Partitioning of a governor fuel output into three separate fuel quantities in a stable manner'2003 6,491,018'Method and apparatus for delivering multiple fuel injections to the cylinder of an internal combustion engine'2002 6,470,849'Separate injector main timing maps for use with and without pilot'2002 6,467,452'Method and apparatus for delivering multiple fuel injections to the cylinder of an internal combustion engine'2002 6,453,874'Apparatus and method for controlling fuel injection signals during engine acceleration and deceleration'2002 6,390,082'Method and apparatus for controlling the current level of a fuel injector signal during sudden acceleration'2002

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2002–2014Patents assigned to CATERPILLAR INC (30)· patent assignee history

2002–2007Based in East Peoria, IL, US· patent location history

2005–2011Based in Metamora, IL, US· patent location history

2006–2014Patents assigned to EXXONMOBIL RES & ENG CO (3)· patent assignee history

2011–2014Patents assigned to DUFFY KEVIN P (2)· patent assignee history

2011Patents assigned to HERGART CARL-ANDERS (1)· patent assignee history

2014Patents assigned to BESSONETTE PAUL W (1)· patent assignee history

2014Based in Deeping Gate, GB· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
CATERPILLAR INC	30	2002–2014
EXXONMOBIL RES & ENG CO	3	2006–2014
DUFFY KEVIN Pself	2	2011–2014
BESSONETTE PAUL W	1	2014
HERGART CARL-ANDERS	1	2011

Locations

Location	Patents	Span
Metamora, Illinois, US	18	2005–2011
East Peoria, Illinois, US	12	2002–2007
Deeping Gate, GB	1	2014