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USPTO Patent Rankings Data through Dec 31, 2025
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Eric C. Fluga — 25 Patents

Caterpillar: 24 patents #141 of 8,398Top 2%
Dunlap, IL: #23 of 474 inventorsTop 5%
Illinois: #2,714 of 84,256 inventorsTop 4%
Overall (All Time): #158,593 of 4,157,543Top 4%
25 Patents All Time
Eric C. Fluga has been granted 25 US patents while listed as an inventor at Caterpillar. The first was granted in 2000 and the most recent in December 2013. Eric C. Fluga ranks #158,593 of 4,157,543 US inventors in our database (top 3.8%). Patent records list Eric C. Fluga in Dunlap, IL, US.

Issued Patents All Time

Showing 1–25 of 25 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
8608834 Filter service system and method Cheryl Sellers, David Thaler, Mark Grimm, Jeremy Trethewey, Natalie Noel Vanderspiegel +8 more 2013-12-17 $23,342,000
8252093 Filter service system and method Cheryl Sellers, David Thaler, Mark Grimm, Jeremy Trethewey, Natalie Noel Vanderspiegel +8 more 2012-08-28
8024919 Engine system, operating method and control strategy for aftertreatment thermal management Donald W. Heston, Richard W. Kruiswyk, Daniel Crosby, Brian D. Hoff 2011-09-27 $33,377,000
7410529 Filter service system and method Cheryl Sellers, David Thaler, Mark Grimm, Jeremy Trethewey, Natalie Noel Vanderspiegel +8 more 2008-08-12 $41,149,000
RE40144 Method and apparatus for delivering multiple fuel injections to the cylinder of an internal combustion engine Kevin P. Duffy, Brian G. McGee, Matthew R. Roth, Gregory G. Hafner 2008-03-11
7278411 Flow sensor Patrick W. Savage, Jr., James R. Weber 2007-10-09 $36,392,000
7252054 Combustion engine including cam phase-shifting James R. Weber, Scott Leman, Gerald N. Coleman, Kevin P. Duffy, Jonathan Kilkenny 2007-08-07 $54,209,000
7201121 Combustion engine including fluidically-driven engine valve actuator James R. Weber, Scott Leman, Gerald N. Coleman, Kevin P. Duffy, Jonathan Kilkenny +1 more 2007-04-10 $25,442,000
7198024 Low emissions compression ignited engine technology Gerald N. Coleman, Jonathan Kilkenny, Kevin P. Duffy 2007-04-03 $117,569,000
7191743 Air and fuel supply system for a combustion engine James R. Weber, Scott Leman, Gerald N. Coleman, Kevin P. Duffy, Jonathan Kilkenny +1 more 2007-03-20 $39,417,000
7178492 Air and fuel supply system for combustion engine Gerald N. Coleman, Kevin P. Duffy, Stephen A. Faulkner, Jonathan Kilkenny, Scott Leman +3 more 2007-02-20 $41,021,000
7171801 Filter system Maarten Verkiel, Jo L. Williams 2007-02-06 $80,836,000
7150152 Vibration limiter for coaxial shafts and compound turbocharger using same Jonathan Kilkenny, Paul W. Reisdorf, Matthew D. Rampenthal 2006-12-19 $113,177,000
6691671 Method and apparatus for delivering multiple fuel injections to the cylinder of an internal combustion engine Kevin P. Duffy, Gregory G. Hafner, Brian G. McGee, Matthew R. Roth 2004-02-17 $24,271,000
6651618 Air and fuel supply system for combustion engine Gerald N. Coleman, Kevin P. Duffy, Stephen A. Faulkner, Jonathan Kilkenny, Scott Leman +3 more 2003-11-25 $19,055,000
6546909 Piston for a thermal regenerated engine John M. Clarke 2003-04-15 $14,901,000
6543428 Intake air separation system for an internal combustion engine Joseph A. Blandino, Gerald N. Coleman, Charles H. Dutart 2003-04-08 $20,172,000
6536209 Post injections during cold operation Brian G. McGee, Kent A. Koshkarian 2003-03-25 $10,262,000
6516783 Camshaft apparatus and method for compensating for inherent injector delay in a multiple fuel injection event Charles H. Dutart 2003-02-11 $6,705,000
6491018 Method and apparatus for delivering multiple fuel injections to the cylinder of an internal combustion engine Kevin P. Duffy, Gregory G. Hafner, Brian G. McGee, Matthew R. Roth 2002-12-10 $83,904,000
6467452 Method and apparatus for delivering multiple fuel injections to the cylinder of an internal combustion engine Kevin P. Duffy, Gregory G. Hafner, Brian G. McGee, Matthew R. Roth 2002-10-22 $12,714,000
6453893 Intake air separation system for an internal combustion engine Gerald N. Coleman, Charles H. Dutart 2002-09-24 $14,218,000
6422217 Back pressure valve drive EGR system Dennis D. Feucht, Keith E. Lawrence, Carol A. Rathman 2002-07-23 $14,802,000
6289884 Intake air separation system for an internal combustion engine Joseph A. Blandino, Charles H. Dutart 2001-09-18 $28,808,000
6053144 Diesel engine with a combustor which provides combustion products to reduce NO.sub.x production in a combustion chamber Stuart A. Greenwood 2000-04-25 $23,099,000