Inventor · disambiguated record
Keith E. Lawrence
Also filed as: LAWRENCE KEITH · LAWRENCE KEITH E · LAWRENCE KEITH EDWARD
28 granted patents·948 citations·filing 1981–2013
97Inventor score
Top patents by PatentIndex Score
28 records- 0196US6216458B1Exhaust gas recirculation systemCATERPILLAR INC·Filed 1999·Granted Apr 17, 2001·148 cites·21 claims
- 0294US6769635B2Mixed mode fuel injector with individually moveable needle valve membersCATERPILLAR INC·Filed 2003·Granted Aug 3, 2004·94 cites·20 claims
- 0392US6427671B1Exhaust gas recirculation mixer apparatus and methodCATERPILLAR INC·Filed 2000·Granted Aug 6, 2002·89 cites·20 claims
- 0492US4429587AAttitude insensitive lubrication systemsGEN ELECTRIC·Filed 1981·Granted Feb 7, 1984·70 cites·6 claims
- 0589US6769392B2Variable valve timing in a homogenous charge compression ignition engineCATERPILLAR INC·Filed 2001·Granted Aug 3, 2004·29 cites·11 claims
- 0689US5237976AEngine combustion systemCATERPILLAR INC·Filed 1992·Granted Aug 24, 1993·54 cites·9 claims
- 0788US7909271B2Fuel injector nozzle for an internal combustion engineCATERPILLAR INC·Filed 2008·Granted Mar 22, 2011·11 cites·12 claims
- 0888US7032566B2Fuel injector nozzle for an internal combustion engineCATERPILLAR INC·Filed 2003·Granted Apr 25, 2006·22 cites·33 claims
- 0987US6843434B2Dual mode fuel injector with one piece needle valve memberCATERPILLAR INC·Filed 2003·Granted Jan 18, 2005·30 cites·20 claims
- 1087US6422217B1Back pressure valve drive EGR systemCATERPILLAR INC·Filed 2000·Granted Jul 23, 2002·33 cites·21 claims
- 1186US7444980B2Fuel injector nozzle for an internal combustion engineCATERPILLAR INC·Filed 2007·Granted Nov 4, 2008·12 cites·43 claims
- 1285US6945475B2Dual mode fuel injection system and fuel injector for sameCATERPILLAR INC·Filed 2002·Granted Sep 20, 2005·29 cites·20 claims
- 1385US5499615ADirect injection propane fuel system for diesel engine applicationsCATERPILLAR INC·Filed 1994·Granted Mar 19, 1996·52 cites·20 claims
- 1484US5765534ALoading absorbing jumper tube assemblyCATERPILLAR INC·Filed 1997·Granted Jun 16, 1998·50 cites·10 claims
- 1583US6237336B1Exhaust gas recirculation system in an internal combustion engine and method of using sameCATERPILLAR INC·Filed 1999·Granted May 29, 2001·40 cites·11 claims
- 1683US6230695B1Exhaust gas recirculation systemCATERPILLAR INC·Filed 1999·Granted May 15, 2001·38 cites·20 claims
- 1780US7134615B2Nozzle insert for mixed mode fuel injectorCATERPILLAR INC·Filed 2002·Granted Nov 14, 2006·19 cites·10 claims
- 1862US6192686B1Exhaust gas recirculation systemCATERPILLAR INC·Filed 1999·Granted Feb 27, 2001·20 cites·21 claims
- 1960US6185939B1Exhaust gas recirculation systemCATERPILLAR INC·Filed 1999·Granted Feb 13, 2001·19 cites·21 claims
- 2057US7370613B2Eccentric crank variable compression ratio mechanismCATERPILLAR INC·Filed 2004·Granted May 13, 2008·9 cites·32 claims
- 2157US7055469B2Combustion engine variable compression ratio apparatus and methodCATERPILLAR INC·Filed 2003·Granted Jun 6, 2006·9 cites·30 claims
- 2256US5564699ASide and gap sealed oil ringCATERPILLAR INC·Filed 1995·Granted Oct 15, 1996·21 cites·2 claims
- 2353US5131316AAutoloading apparatus for tank cannonGEN ELECTRIC·Filed 1991·Granted Jul 21, 1992·17 cites·25 claims
- 2450US9394929B2Reducing dig force in hydraulic implementsCATERPILLAR INC·Filed 2013·Granted Jul 19, 2016·0 cites·19 claims
- 2549US5845852ADirect operated check injectorCATERPILLAR INC·Filed 1996·Granted Dec 8, 1998·12 cites·30 claims
- 2648US5603512ASide and gap sealed oil ringCATERPILLAR INC·Filed 1996·Granted Feb 18, 1997·15 cites·8 claims
- 2746US7290520B2Fuel injector nozzle for an internal combustion engineCATERPILLAR INC·Filed 2006·Granted Nov 6, 2007·0 cites·12 claims
- 2839US6205775B1Exhaust gas recirculation control systemCATERPILLAR INC·Filed 1999·Granted Mar 27, 2001·6 cites·15 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →