Inventor
RENDAHL CRAIG S
US16 patents
⚠️ This page may combine multiple inventors who share the name “RENDAHL CRAIG S”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SPX CORP
12 patentsUS6857262B2Feb 22, 2005
Catalytic converter function detection
SPX CORP67 citations95
US6744516B2Jun 1, 2004
Optical path structure for open path emissions sensing
SPX CORP13 citations92
US6900893B2May 31, 2005
Optical path structure for open path emissions sensing with particulate matter and lubricating oil consumption absorption methodology
SPX CORP12 citations91
US6789021B2Sep 7, 2004
Method and system for detection of hydrocarbon species in a gas
SPX CORP33 citations90
US6745613B2Jun 8, 2004
Method and system for determining the type of fuel used to power a vehicle
SPX CORP19 citations82
US6833922B2Dec 21, 2004
Optical path structure for open path emissions sensing with opposed sources
SPX CORP8 citations73
US6744059B2Jun 1, 2004
Optical path structure for open path emissions sensing with spinning mirror
SPX CORP6 citations73
US6757607B2Jun 29, 2004
Audit vehicle and audit method for remote emissions sensing
SPX CORP8 citations69
US6561027B2May 13, 2003
Support structure for system for measuring vehicle speed and/or acceleration
SPX CORP9 citations68
US6781110B2Aug 24, 2004
Apparatus and method for measuring vehicle speed and/or acceleration
SPX CORP2 citations61
US6750444B2Jun 15, 2004
Apparatus and method for measuring vehicle speed and/or acceleration
SPX CORP4 citations61
US6952641B2Oct 4, 2005
Software architecture of an integrated host system for sensed vehicle data
SPX CORP6 citations54
ENVIROTEST SYSTEMS CORP
3 patentsUS6723989B1Apr 20, 2004
Remote emissions sensing system and method with a composite beam of IR and UV radiation that is not split for detection
ENVIROTEST SYSTEMS CORP22 citations92
US6230087B1May 8, 2001
Vehicular running loss detecting system
ENVIROTEST SYSTEMS CORP34 citations92
US6307201B1Oct 23, 2001
Method and apparatus for selecting a filter for a remote sensing device
ENVIROTEST SYSTEMS CORP45 citations86