Assignee
ENVIRONMENTAL SYST PROD
US·24 granted patents·1 pending application·530 citations·filing 1992–2008
Top patents by PatentIndex Score
25 records- 0192US7930931B2System and method for quantifying the presence of components in the exhaust of commercial and/or heavy-duty vehiclesENVIRONMENTAL SYST PROD·Filed 2008·Granted Apr 26, 2011·15 cites·21 claims
- 0288US7272476B2Universal automotive maintenance component controller apparatusENVIRONMENTAL SYST PROD·Filed 2005·Granted Sep 18, 2007·27 cites·8 claims
- 0387US7359804B2System and method for calibrating remote emissions sensing instrumentsENVIRONMENTAL SYST PROD·Filed 2005·Granted Apr 15, 2008·15 cites·14 claims
- 0487US7168297B2System and method for testing fuel tank integrityENVIRONMENTAL SYST PROD·Filed 2004·Granted Jan 30, 2007·21 cites·38 claims
- 0587US6560545B2System and method for remote analysis of small engine vehicle emissionsENVIRONMENTAL SYST PROD·Filed 2000·Granted May 6, 2003·28 cites·18 claims
- 0685US7400398B2Remote emissions sensing system and method incorporating spectral matching by data interpolationENVIRONMENTAL SYST PROD·Filed 2006·Granted Jul 15, 2008·10 cites·19 claims
- 0785USD555524SVehicle data kioskENVIRONMENTAL SYST PROD·Filed 2006·Granted Nov 20, 2007·54 cites·1 claims
- 0885US6701256B2Exhaust opacity measuring deviceENVIRONMENTAL SYST PROD·Filed 2002·Granted Mar 2, 2004·20 cites·8 claims
- 0985US5321439AVehicle headlight testing systemENVIRONMENTAL SYST PROD·Filed 1992·Granted Jun 14, 1994·51 cites·17 claims
- 1084USRE40767EUnmanned integrated optical remote emissions sensor (RES) for motor vehiclesENVIRONMENTAL SYST PROD·Filed 2000·Granted Jun 23, 2009·22 cites·21 claims
- 1184US6841778B1Method and apparatus for measuring particulates in vehicle emissionsENVIRONMENTAL SYST PROD·Filed 2002·Granted Jan 11, 2005·33 cites·44 claims
- 1283US5239858AMethod and apparatus for the automated testing of vehicle fuel evaporation control systemsENVIRONMENTAL SYST PROD·Filed 1992·Granted Aug 31, 1993·48 cites·10 claims
- 1382US6983639B1Remote emissions sensing system with improved NOx detectionENVIRONMENTAL SYST PROD·Filed 2000·Granted Jan 10, 2006·23 cites·16 claims
- 1480US6671630B2System and method for remote analysis of small engine vehicle emissionsENVIRONMENTAL SYST PROD·Filed 2003·Granted Dec 30, 2003·17 cites·18 claims
- 1579US7945358B2System and method for testing the integrity of a vehicle testing/diagnostic systemENVIRONMENTAL SYST PROD·Filed 2006·Granted May 17, 2011·11 cites·16 claims
- 1679US5369984AMethod and apparatus for testing of tank integrity of vehicle fuel systemsENVIRONMENTAL SYST PROD·Filed 1993·Granted Dec 6, 1994·44 cites·7 claims
- 1777US7409852B2System and method for testing fuel tank integrityENVIRONMENTAL SYST PROD·Filed 2006·Granted Aug 12, 2008·6 cites·1 claims
- 1877US7141793B2Remove vehicle emission sensing device with single detectorENVIRONMENTAL SYST PROD·Filed 2001·Granted Nov 28, 2006·14 cites·15 claims
- 1976US7016789B2Exhaust opacity measuring deviceENVIRONMENTAL SYST PROD·Filed 2004·Granted Mar 21, 2006·10 cites·6 claims
- 2074US7485861B2System and method for remote emissions sensing including calculation and calibration techniques compensating for temperature and pressure effectsENVIRONMENTAL SYST PROD·Filed 2005·Granted Feb 3, 2009·4 cites·6 claims
- 2167US7274994B2Exhaust opacity measuring deviceENVIRONMENTAL SYST PROD·Filed 2005·Granted Sep 25, 2007·1 cites·3 claims
- 2264US5550737AMethod for analysis of vehicle performance characteristicsENVIRONMENTAL SYST PROD·Filed 1993·Granted Aug 27, 1996·23 cites·9 claims
- 2360US5323640AAutomated testing of vehicle fuel capsENVIRONMENTAL SYST PROD·Filed 1993·Granted Jun 28, 1994·24 cites·11 claims
- 2445US2007204675A1System and method for testing fuel tank integrityENVIRONMENTAL SYST PROD·Filed 2007·Application pending·0 cites
- 2542US5524476AMethod and apparatus for insuring the integrity of vehicle testing proceduresENVIRONMENTAL SYST PROD·Filed 1995·Granted Jun 11, 1996·9 cites·7 claims
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