Inventor · disambiguated record
Paul M. Najt
Also filed as: NAJT PAUL M
114 granted patents·20 pending applications·1,545 citations·filing 2001–2022
99Inventor score
Files withGM GLOBAL TECH OPERATIONS LLC43GM GLOBAL TECH OPERATIONS INC33GEN MOTORS CORP11WERMUTH NICOLE8NARAYANASWAMY KUSHAL5
Top patents by PatentIndex Score
134 records- 0198US9897000B2Exhaust compound internal combustion engine with controlled expansionGM GLOBAL TECH OPERATIONS LLC·Filed 2015·Granted Feb 20, 2018·50 cites·20 claims
- 0298US7021277B2Valve and fueling strategy for operating a controlled auto-ignition four-stroke internal combustion engineGEN MOTORS CORP·Filed 2004·Granted Apr 4, 2006·110 cites·32 claims
- 0398US6971365B1Auto-ignition gasoline engine combustion chamber and methodGEN MOTORS CORP·Filed 2004·Granted Dec 6, 2005·90 cites·11 claims
- 0497US10132270B2Engine assemblies and methods of manufacturing the sameGM GLOBAL TECH OPERATIONS LLC·Filed 2016·Granted Nov 20, 2018·5 cites·15 claims
- 0597US7370616B2Method for transition between controlled auto-ignition and spark ignition modes in direct fuel injection enginesGM GLOBAL TECH OPERATIONS INC·Filed 2006·Granted May 13, 2008·53 cites·13 claims
- 0697US7360523B2Method and apparatus to control operation of a homogeneous charge compression-ignition engineGM GLOBAL TECH OPERATIONS INC·Filed 2007·Granted Apr 22, 2008·51 cites·20 claims
- 0796US8347857B2Method and device for improving charged enginesGM GLOBAL TECH OPERATIONS INC·Filed 2010·Granted Jan 8, 2013·19 cites·21 claims
- 0896US7367319B2Method and apparatus to determine magnitude of combustion chamber depositsGM GLOBAL TECH OPERATIONS INC·Filed 2006·Granted May 6, 2008·39 cites·15 claims
- 0996US7228839B2NOx emission control for a controlled auto-ignition four-stroke internal combustion engineGM GLOBAL TECH OPERATIONS INC·Filed 2005·Granted Jun 12, 2007·27 cites·36 claims
- 1095US10018104B2Combustion ignition device for an internal combustion engineGM GLOBAL TECH OPERATIONS LLC·Filed 2016·Granted Jul 10, 2018·21 cites·15 claims
- 1195US8347849B2High load SI-HCCI transition by selective combustion mode switchingGM GLOBAL TECH OPERATIONS INC·Filed 2010·Granted Jan 8, 2013·14 cites·19 claims
- 1295US7059281B2Four stroke engine auto-ignition combustionGEN MOTORS CORP·Filed 2005·Granted Jun 13, 2006·45 cites·13 claims
- 1395US6588396B1Spark ignition direct injection engine with oval fuel spray into oblong piston bowlGEN MOTORS CORP·Filed 2002·Granted Jul 8, 2003·42 cites·8 claims
- 1495US6494178B1Combustion chamber including piston for a spark-ignition, direct-injection combustion systemGEN MOTORS CORP·Filed 2001·Granted Dec 17, 2002·58 cites·5 claims
- 1594US9689339B2Engine torque control with fuel massGM GLOBAL TECH OPERATIONS LLC·Filed 2015·Granted Jun 27, 2017·8 cites·13 claims
- 1694US7275514B2Method of HCCI and SI combustion control for a direct injection internal combustion engineGM GLOBAL TECH OPERATIONS INC·Filed 2006·Granted Oct 2, 2007·32 cites·21 claims
- 1794US7128062B2Method for mid load operation of auto-ignition combustionUNIV MICHIGAN·Filed 2005·Granted Oct 31, 2006·48 cites·8 claims
- 1894US7128047B2Valve and fueling strategy for operating a controlled auto-ignition four-stroke internal combustion engineGEN MOTORS CORP·Filed 2004·Granted Oct 31, 2006·66 cites·105 claims
- 1993US8061318B2Method and apparatus for continuously variable differential phasing of engine valve operationCLEARY DAVID J·Filed 2008·Granted Nov 22, 2011·28 cites·15 claims
- 2093US6994072B2Method for mid load operation of auto-ignition combustionGEN MOTORS CORP·Filed 2004·Granted Feb 7, 2006·77 cites·12 claims
- 2192US10393032B2Elevated compression ratio internal combustion engine with multi-stage boostingGM GLOBAL TECH OPERATIONS LLC·Filed 2015·Granted Aug 27, 2019·4 cites·12 claims
- 2292US9689321B2Engine torque control with combustion phasingGM GLOBAL TECH OPERATIONS LLC·Filed 2015·Granted Jun 27, 2017·6 cites·16 claims
- 2392US7370633B2Load transient control methods for direct-injection engines with controlled auto-ignition combustionGM GLOBAL TECH OPERATIONS INC·Filed 2006·Granted May 13, 2008·29 cites·20 claims
- 2492US7367313B2Speed transient control methods for direct-injection engines with controlled auto-ignition combustionGM GLOBAL TECH OPERATIONS INC·Filed 2006·Granted May 6, 2008·22 cites·7 claims
- 2592US7246597B2Method and apparatus to operate a homogeneous charge compression-ignition engineGM GLOBAL TECH OPERATIONS INC·Filed 2006·Granted Jul 24, 2007·25 cites·17 claims
- 2691US10487753B2Method and apparatus for controlling operation of an internal combustion engineGM GLOBAL TECH OPERATIONS LLC·Filed 2015·Granted Nov 26, 2019·6 cites·19 claims
- 2790US10125809B2Crankshaft assemblies and methods of manufacturing the sameGM GLOBAL TECH OPERATIONS LLC·Filed 2016·Granted Nov 13, 2018·4 cites·12 claims
- 2890US8424289B2Technique for production of ammonia on demand in a three way catalyst for a passive selective catalytic reduction systemNARAYANASWAMY KUSHAL·Filed 2009·Granted Apr 23, 2013·21 cites·6 claims
- 2990US7684925B2Engine warm-up of a homogeneous charge compression ignition engineGM GLOBAL TECH OPERATIONS INC·Filed 2007·Granted Mar 23, 2010·18 cites·18 claims
- 3090US7152559B2Valve and fueling strategy for operating a controlled auto-ignition four-stroke internal combustion engineGEN MOTORS CORP·Filed 2004·Granted Dec 26, 2006·36 cites·103 claims
- 3189US8539760B2Catalyst materials for NOx oxidation in an exhaust aftertreatment system that uses passive ammonia SCRLI WEI·Filed 2010·Granted Sep 24, 2013·10 cites·25 claims
- 3289US7894976B2Light load and idle HCCI combustion control by fuel pressure modificationGM GLOBAL TECH OPERATIONS INC·Filed 2009·Granted Feb 22, 2011·13 cites·17 claims
- 3389US7559394B2Energy recovery systemGM GLOBAL TECH OPERATIONS INC·Filed 2006·Granted Jul 14, 2009·18 cites·6 claims
- 3488US10040723B2Ceramic microsphere thermal barrier coatingGM GLOBAL TECH OPERATIONS LLC·Filed 2016·Granted Aug 7, 2018·3 cites·9 claims
- 3588US9926825B2Method and apparatus for exhaust purification for an internal combustion engineGM GLOBAL TECH OPERATIONS LLC·Filed 2016·Granted Mar 27, 2018·5 cites·19 claims
- 3688US9080508B2Piston compound internal combustion engine with expander deactivationGM GLOBAL TECH OPERATIONS INC·Filed 2013·Granted Jul 14, 2015·7 cites·20 claims
- 3788US7918205B2Method and apparatus to control transition between HCCI and SI combustion in a direct-injection gasoline engineGM GLOBAL TECH OPERATIONS INC·Filed 2008·Granted Apr 5, 2011·10 cites·16 claims
- 3888US7478620B2Method and apparatus to control a transition between HCCI and SI combustion in a direct-injection gasoline engineGM GLOBAL TECH OPERATIONS INC·Filed 2007·Granted Jan 20, 2009·16 cites·22 claims
- 3988US7337762B2Fuel adaptation in a homogeneous charge compression ignition engineGM GLOBAL TECH OPERATIONS INC·Filed 2006·Granted Mar 4, 2008·27 cites·18 claims
- 4086US9180408B2Fuel efficient ammonia generation strategy for lean-burn engines utilizing passive NH3-SCR for the control of NOxPERRY KEVIN L·Filed 2011·Granted Nov 10, 2015·8 cites·15 claims
- 4186US7367308B2Method for load transient control between lean and stoichiometric combustion modes of direct-injection engines with controlled auto-ignition combustionGM GLOBAL TECH OPERATIONS INC·Filed 2006·Granted May 6, 2008·19 cites·6 claims
- 4285US11319894B2Insulated exhaust port liner for a cylinder head assembly of a motor vehicleGM GLOBAL TECH OPERATIONS LLC·Filed 2020·Granted May 3, 2022·1 cites·19 claims
- 4385US9677464B2Single-shaft dual expansion internal combustion engineGM GLOBAL TECH OPERATIONS LLC·Filed 2015·Granted Jun 13, 2017·3 cites·20 claims
- 4485US9605708B2Single-shaft dual expansion internal combustion engineGM GLOBAL TECH OPERATIONS LLC·Filed 2015·Granted Mar 28, 2017·3 cites·20 claims
- 4585US9074551B2Method and apparatus for engine operation in homogeneous charge compression ignition and spark ignitionYUN HANHO·Filed 2011·Granted Jul 7, 2015·7 cites·18 claims
- 4685US8616162B2Opposed free piston linear alternatorNAJT PAUL M·Filed 2011·Granted Dec 31, 2013·7 cites·19 claims
- 4785US7899601B2Methodology for extending the high load limit of HCCI operation by adjusting injection timing and spark timingGM GLOBAL TECH OPERATIONS INC·Filed 2009·Granted Mar 1, 2011·15 cites·14 claims
- 4885US7802553B2Method to improve combustion stability in a controlled auto-ignition combustion engineGM GLOBAL TECH OPERATIONS INC·Filed 2006·Granted Sep 28, 2010·9 cites·11 claims
- 4985US7412322B1Method and apparatus for engine control during auto-ignition combustionGM GLOBAL TECH OPERATIONS INC·Filed 2007·Granted Aug 12, 2008·17 cites·26 claims
- 5084US9022003B2Piston for robust auto-ignitionGROVER JR RONALD O·Filed 2012·Granted May 5, 2015·10 cites·17 claims
Showing the top 50 of 134 patent records by PatentIndex Score.
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