Inventor · disambiguated record
Richard H. Holtman
Also filed as: HOLTMAN RICHARD · HOLTMAN RICHARD H · HOLTMAN RICHARD HERMAN
23 granted patents·403 citations·filing 1995–2013
96Inventor score
Top patents by PatentIndex Score
23 records- 0195US6725838B2Fuel injector having dual mode capabilities and engine using sameCATERPILLAR INC·Filed 2002·Granted Apr 27, 2004·65 cites·61 claims
- 0293US6655654B1Piezoelectric valve systemCATERPILLAR INC·Filed 2003·Granted Dec 2, 2003·29 cites·11 claims
- 0392US6739575B2Piezoelectric valve systemCATERPILLAR INC·Filed 2002·Granted May 25, 2004·27 cites·19 claims
- 0489US6553966B2Method of presetting an internal combustion engineCATERPILLAR INC·Filed 2001·Granted Apr 29, 2003·28 cites·13 claims
- 0588US6895752B1Method and apparatus for exhaust gas recirculation cooling using a vortex tube to cool recirculated exhaust gasesCATERPILLAR INC·Filed 2003·Granted May 24, 2005·27 cites·21 claims
- 0688US6354266B1Vehicle with engine having enhanced warm-up operation modeCATERPILLAR INC·Filed 2000·Granted Mar 12, 2002·36 cites·21 claims
- 0787US6668773B2System and method for calibrating variable actuation systemCATERPILLAR INC·Filed 2002·Granted Dec 30, 2003·27 cites·16 claims
- 0880US5682851AOil system for an engine that includes an auxiliary priming pumpCATERPILLAR INC·Filed 1996·Granted Nov 4, 1997·39 cites·15 claims
- 0974US7059301B2End of injection rate shapingCATERPILLAR INC·Filed 2003·Granted Jun 13, 2006·15 cites·19 claims
- 1071US9016603B2Fuel injectorCATERPILLAR INC·Filed 2013·Granted Apr 28, 2015·2 cites·20 claims
- 1168US6695283B2Piezoelectric valve systemCATERPILLAR INC·Filed 2003·Granted Feb 24, 2004·7 cites·11 claims
- 1268US5787863AFuel system having priming actuating fluid accumulatorCATERPILLAR INC·Filed 1996·Granted Aug 4, 1998·26 cites·13 claims
- 1364US5713520AFast spill device for abruptly ending injection in a hydraulically actuated fuel injectorCATERPILLAR INC·Filed 1995·Granted Feb 3, 1998·23 cites·6 claims
- 1460USRE44082EFuel injector having dual mode capabilities and engine using sameSHAFER SCOTT F·Filed 2006·Granted Mar 19, 2013·3 cites·70 claims
- 1559US6715466B2Method and apparatus for operating an internal combustion engine exhaust valve for brakingCATERPILLAR INC·Filed 2001·Granted Apr 6, 2004·7 cites·29 claims
- 1657US6679474B2Piezoelectric valve systemCATERPILLAR INC·Filed 2003·Granted Jan 20, 2004·4 cites·14 claims
- 1756US7063055B2Engine valve actuation system and methodCATERPILLAR INC·Filed 2004·Granted Jun 20, 2006·4 cites·26 claims
- 1856US6807929B2Engine valve actuation system and methodCATERPILLAR INC·Filed 2002·Granted Oct 26, 2004·4 cites·28 claims
- 1953US6609494B2Emissions controller method and systemCATERPILLAR INC·Filed 2001·Granted Aug 26, 2003·7 cites·19 claims
- 2052US5931644APrecision demand axial piston pump with spring bias means for reducing cavitationCATERPILLAR INC·Filed 1997·Granted Aug 3, 1999·15 cites·11 claims
- 2148US6705588B2Piezoelectric valve systemCATERPILLAR INC·Filed 2003·Granted Mar 16, 2004·2 cites·9 claims
- 2244US6742728B2Electrical actuator subassembly with external threads and fuel injector using sameCATERPILLAR INC·Filed 2001·Granted Jun 1, 2004·2 cites·10 claims
- 2332US5992387AFuel system having priming actuating fluid reservoirCATERPILLAR INC·Filed 1996·Granted Nov 30, 1999·4 cites·15 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →