Inventor · disambiguated record
Frederic Anton Matekunas
Also filed as: MATEKUNAS FREDERIC A · MATEKUNAS FREDERIC ANTON
27 granted patents·1 pending application·588 citations·filing 1985–2012
97Inventor score
Files withGM GLOBAL TECH OPERATIONS INC12GEN MOTORS CORP6HASKARA IBRAHIM5WANG YUE-YUN3KWEON CHOL-BUM M2
Top patents by PatentIndex Score
28 records- 0198US4622939AEngine combustion control with ignition timing by pressure ratio managementGEN MOTORS CORP·Filed 1985·Granted Nov 18, 1986·93 cites·19 claims
- 0297US4624229AEngine combustion control with dilution flow by pressure ratio managementGEN MOTORS CORP·Filed 1985·Granted Nov 25, 1986·66 cites·15 claims
- 0397US4621603AEngine combustion control with fuel balancing by pressure ratio managementGEN MOTORS CORP·Filed 1985·Granted Nov 11, 1986·69 cites·2 claims
- 0496US7761223B2Fuel system diagnostics by analyzing engine cylinder pressure signal and crankshaft speed signalGM GLOBAL TECH OPERATIONS INC·Filed 2008·Granted Jul 20, 2010·34 cites·19 claims
- 0596US7231906B1Simultaneous EGR correction and individual cylinder combustion phase balancingGM GLOBAL TECH OPERATIONS INC·Filed 2006·Granted Jun 19, 2007·46 cites·19 claims
- 0695US8437945B2Method of multiple injection timing controlHASKARA IBRAHIM·Filed 2010·Granted May 7, 2013·19 cites·20 claims
- 0794US6560526B1Onboard misfire, partial-burn detection and spark-retard control using cylinder pressure sensingGEN MOTORS CORP·Filed 2000·Granted May 6, 2003·61 cites·19 claims
- 0892US8291751B2Fuel system diagnostics by analyzing cylinder pressure signalWANG YUE-YUN·Filed 2010·Granted Oct 23, 2012·10 cites·3 claims
- 0989US7594493B2Method for controlling fuel injection in a compression ignition engineGM GLOBAL TECH OPERATIONS INC·Filed 2007·Granted Sep 29, 2009·15 cites·15 claims
- 1088US7779679B2Fuel system diagnostics by analyzing cylinder pressure signalGM GLOBAL TECH OPERATIONS INC·Filed 2008·Granted Aug 24, 2010·14 cites·15 claims
- 1186US7231905B1Internal combustion engine exhaust gas recirculation controlGM GLOBAL TECH OPERATIONS INC·Filed 2006·Granted Jun 19, 2007·19 cites·21 claims
- 1284US8306723B2Method to control fuel injector pulsewidth in a compression-ignition engineHASKARA IBRAHIM·Filed 2008·Granted Nov 6, 2012·14 cites·8 claims
- 1381US8473180B2On-board fuel property detection using pattern recognition and power spectral analysis of cylinder pressure signalWANG YUE-YUN·Filed 2010·Granted Jun 25, 2013·5 cites·15 claims
- 1479US8494757B2Method for estimating and controlling accoustic noise during combustionHASKARA IBRAHIM·Filed 2010·Granted Jul 23, 2013·4 cites·17 claims
- 1577US7904233B2Fuel injection measurement and diagnosticsGM GLOBAL TECH OPERATIONS INC·Filed 2008·Granted Mar 8, 2011·9 cites·20 claims
- 1676US7878048B2Fuel system injection timing diagnostics by analyzing cylinder pressure signalGM GLOBAL TECH OPERATIONS INC·Filed 2008·Granted Feb 1, 2011·8 cites·20 claims
- 1776US6176222B1Engine fuel injection control method with fuel puddle modelingGEN MOTORS CORP·Filed 1999·Granted Jan 23, 2001·32 cites·8 claims
- 1874US7418336B2Method for internal combustion engine control using pressure ratiosGM GLOBAL TECH OPERATIONS INC·Filed 2007·Granted Aug 26, 2008·6 cites·20 claims
- 1974US6178949B1Engine control having fuel volatility compensationGEN MOTORS CORP·Filed 1999·Granted Jan 30, 2001·28 cites·6 claims
- 2073US7832259B2Fuel system diagnostics by analyzing engine crankshaft speed signalGM GLOBAL TECH OPERATIONS INC·Filed 2008·Granted Nov 16, 2010·7 cites·16 claims
- 2171US8150596B2Fuel ignition quality detectionKWEON CHOL-BUM M·Filed 2008·Granted Apr 3, 2012·9 cites·19 claims
- 2271US7904231B2Method for controlling combustion noise in a compression-ignition engineGM GLOBAL TECH OPERATIONS INC·Filed 2008·Granted Mar 8, 2011·6 cites·20 claims
- 2370US7676322B1Engine control using cylinder pressure differentialGM GLOBAL TECH OPERATIONS INC·Filed 2009·Granted Mar 9, 2010·6 cites·28 claims
- 2460US7669584B2Method and apparatus for determining piston position in an engineGM GLOBAL TECH OPERATIONS INC·Filed 2007·Granted Mar 2, 2010·3 cites·16 claims
- 2559US8229655B2Fuel injection and combustion fault diagnostics using cylinder pressure sensorWANG YUE-YUN·Filed 2009·Granted Jul 24, 2012·3 cites·17 claims
- 2656US8195379B2Multi-pulse injection fuel and load balancing control systemHASKARA IBRAHIM·Filed 2010·Granted Jun 5, 2012·1 cites·17 claims
- 2745US9759142B2Fuel ignition quality detection systems and methodsKWEON CHOL-BUM M·Filed 2009·Granted Sep 12, 2017·1 cites·26 claims
- 2840US2012191325A1Injection fuel and load balancing control systemHASKARA IBRAHIM·Filed 2012·Application pending·0 cites
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