Assignee
ENVIROTEST SYSTEMS HOLDINGS CORP
US·4 granted patents·1 pending application·227 citations·filing 2011–2013
Top patents by PatentIndex Score
5 records- 0194US8355837B2System and method for testing the integrity of a vehicle testing/diagnostic systemENVIROTEST SYSTEMS HOLDINGS CORP·Filed 2011·Granted Jan 15, 2013·206 cites·16 claims
- 0291US8838396B2Remote vehicle emissions sensing system and method for differentiating water from hydrocarbonsENVIROTEST SYSTEMS HOLDINGS CORP·Filed 2013·Granted Sep 16, 2014·12 cites·7 claims
- 0390US8347701B2System and method for quantifying the presence of components in the exhaust of commercial and/or heavy-duty vehiclesENVIROTEST SYSTEMS HOLDINGS CORP·Filed 2011·Granted Jan 8, 2013·8 cites·25 claims
- 0471US9057664B2System and method for quantifying the presence of components in the exhaust of commercial and/or heavy-duty vehiclesENVIROTEST SYSTEMS HOLDINGS CORP·Filed 2013·Granted Jun 16, 2015·1 cites·45 claims
- 0551US2014033796A1System and method for quantifying the presence of components in the exhaust of commercial and/or heavy-duty vehiclesENVIROTEST SYSTEMS HOLDINGS CORP·Filed 2013·Application pending·0 cites
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