Inventor · disambiguated record
Dean P. Pfefferle
Also filed as: PFEFFERLE DEAN · PFEFFERLE DEAN P
13 granted patents·208 citations·filing 1993–2010
93Inventor score
Top patents by PatentIndex Score
13 records- 0190US8429921B2A/C maintenance system using heat transfer from the condenser to the oil separator for improved efficiencySUHARNO ANWAR·Filed 2010·Granted Apr 30, 2013·9 cites·10 claims
- 0286US6442963B1Non-condensable purge technique using refrigerant temperature offsetSNAP ON TECH INC·Filed 2001·Granted Sep 3, 2002·41 cites·20 claims
- 0383US7845178B1A/C maintenance system using heat transfer from the condenser to the oil separator for improved efficiencySPX CORP·Filed 2006·Granted Dec 7, 2010·8 cites·10 claims
- 0480USD465895SCart-housing for automotive service equipmentSNAP ON TECH INC·Filed 2001·Granted Nov 19, 2002·29 cites·1 claims
- 0576US8887516B2Refrigerant charging system and method for using vapor-phase refrigerantGOVEKAR CRAIG F·Filed 2010·Granted Nov 18, 2014·4 cites·25 claims
- 0669US6185945B1Isolated refrigerant identifierSNAP ON TOOLS CO·Filed 1999·Granted Feb 13, 2001·36 cites·19 claims
- 0765US6427457B1Refrigerant recycling system with automatic detection of optional vacuum pumpSNAP ON TECH INC·Filed 2001·Granted Aug 6, 2002·14 cites·15 claims
- 0863US7310956B2Refrigerant charging by optimum performanceSNAP ON TOOLS CORP·Filed 2004·Granted Dec 25, 2007·12 cites·14 claims
- 0962US7905095B2System for refrigerant charging with constant volume tankSPX CORP·Filed 2004·Granted Mar 15, 2011·12 cites·17 claims
- 1058US7210300B2Refrigerant charging system and method with cartridgesSNAP ON TOOLS CORP·Filed 2004·Granted May 1, 2007·9 cites·13 claims
- 1157US5369959ANon-condensable purge control for refrigerant recycling systemSNAP ON TOOLS CORP·Filed 1993·Granted Dec 6, 1994·22 cites·13 claims
- 1253US7762089B2Refrigerant charging system and method using vapor-phase refrigerantSPX CORP·Filed 2004·Granted Jul 27, 2010·6 cites·5 claims
- 1353US7293419B1Refrigerant transfer system and methodSNAP ON TOOLS CORP·Filed 2004·Granted Nov 13, 2007·6 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →