Assignee
FIGARO ENG
JP39 patents
Top patents by PatentIndex Score
US5837886ANov 17, 1998
Gas sensor
FIGARO ENG30 citations92
US4718991AJan 12, 1988
Proton conductor gas sensor and method of detecting gas using proton conductor gas sensor
FIGARO ENG45 citations92
US4816800AMar 28, 1989
Exhaust gas sensor
FIGARO ENG31 citations91
US4938928AJul 3, 1990
Gas sensor
FIGARO ENG70 citations90
US5759367AJun 2, 1998
Gas sensor
FIGARO ENG26 citations88
US5517182AMay 14, 1996
Method for CO detection and its apparatus
FIGARO ENG33 citations85
US6128945AOct 10, 2000
Gas detecting method and its detector
FIGARO ENG22 citations83
US5320577AJun 14, 1994
Air conditioner control device
FIGARO ENG42 citations81
US5088314AFeb 18, 1992
Gas detecting method and system
FIGARO ENG43 citations81
US4701739AOct 20, 1987
Exhaust gas sensor and process for producing same
FIGARO ENG19 citations79
US4731226AMar 15, 1988
Gas sensor
FIGARO ENG20 citations78
US7033482B2Apr 25, 2006
Self-diagnostic method for electrochemical gas sensor and gas detecting device
FIGARO ENG7 citations74
US7090755B2Aug 15, 2006
Gas detecting device with self-diagnosis for electrochemical gas sensor
FIGARO ENG9 citations73
US6319473B1Nov 20, 2001
Co sensor and its fabrication
FIGARO ENG8 citations73
US4658632AApr 21, 1987
Sensor
FIGARO ENG11 citations71
US4459577AJul 10, 1984
Gas sensor
FIGARO ENG6 citations71
US8815065B2Aug 26, 2014
Electrochemical gas sensor and mounting structure therefor
FIGARO ENG4 citations69
US6499335B2Dec 31, 2002
Gas sensor
FIGARO ENG7 citations69
US6565812B1May 20, 2003
Gas sensor and method for producing it
FIGARO ENG8 citations68
US6055849AMay 2, 2000
Gas detector and its adjusting method
FIGARO ENG11 citations67
US5493897AFeb 27, 1996
Gas sensor
FIGARO ENG15 citations67
US4958513ASep 25, 1990
Gas detecting device
FIGARO ENG14 citations66
US7381314B2Jun 3, 2008
Liquid electrochemical gas sensor
FIGARO ENG3 citations62
US7378008B2May 27, 2008
Liquid electrochemical gas sensor
FIGARO ENG4 citations62
US11385195B2Jul 12, 2022
Gas detector and gas detection method
FIGARO ENG1 citations61
US7393505B2Jul 1, 2008
Proton conductor gas sensor
FIGARO ENG4 citations60
US4575441AMar 11, 1986
Exhaust gas sensor and process for producing same
FIGARO ENG4 citations60
US5006828AApr 9, 1991
Exhaust gas sensor and process for producing same
FIGARO ENG13 citations59
US11567021B2Jan 31, 2023
Gas detection device and gas detection method
FIGARO ENG0 citations58
US12078606B2Sep 3, 2024
Gas sensor
FIGARO ENG0 citations56
US11940432B2Mar 26, 2024
Gas detector
FIGARO ENG0 citations55
US11638895B2May 2, 2023
Gas sensor and method for producing same
FIGARO ENG0 citations55
US11977007B2May 7, 2024
Gas detection device and gas detection method
FIGARO ENG0 citations54
US10976280B2Apr 13, 2021
Electrochemical gas sensor
FIGARO ENG0 citations50
US7435321B2Oct 14, 2008
Proton conductor gas sensor
FIGARO ENG1 citations49
US11698356B2Jul 11, 2023
Gas detection device and gas detection method using metal-oxide semiconductor gas sensor
FIGARO ENG0 citations47
US5070318ADec 3, 1991
Exhaust gas sensor and process for producing same
FIGARO ENG1 citations46
US10712305B2Jul 14, 2020
Gas detection apparatus having an electrochemical gas sensor and gas detection method thereby
FIGARO ENG0 citations42
US11506622B2Nov 22, 2022
Gas detector comprising plural gas sensors and gas detection method thereby
FIGARO ENG0 citations40