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Class Information
Number: 73/23.32
Name: Measuring and testing > Gas analysis > Gas of combustion > Air-fuel ratio
Description: Subject matter wherein the ratio of the amount of air to the amount of fuel in the gas of combustion is determined.










Sub-classes under this class:

Class Number Class Name Patents
73/23.33 Solid content 74


Patents under this class:
1 2 3 4 5 6 7 8

Patent Number Title Of Patent Date Issued
8712692 Method of measuring the flux of a soil gas Apr. 29, 2014
8702936 Device for determining carbon monoxide concentration and related method Apr. 22, 2014
8702937 Gas sensor control apparatus controlling output characteristic of gas sensor Apr. 22, 2014
8706424 System for estimating a gas concentration in a mixed atmosphere Apr. 22, 2014
8702934 Gas sensor Apr. 22, 2014
8702962 Carbon dioxide gas sensors and method of manufacturing and using same Apr. 22, 2014
8679312 Gas sensor system and method for controlling gas sensor Mar. 25, 2014
8673128 Gas sensor element, gas sensor, and production method thereof Mar. 18, 2014
8632668 Deterioration signal generation device for oxygen sensor Jan. 21, 2014
8631786 Method, systems and sensor for detecting humidity Jan. 21, 2014
8632667 Deterioration signal generation device for oxygen sensor Jan. 21, 2014
8623188 Gas sensor Jan. 7, 2014
8623187 Gas sensor Jan. 7, 2014
8623186 Apparatus and process for gas sensor control Jan. 7, 2014
8626451 Method and device for characterization and sensing of exhaust gas and control of engines and components for aftertreatment of exhaust gases Jan. 7, 2014
8617372 Array-type NH.sub.3 sensor Dec. 31, 2013
8597481 Gas sensor element and gas sensor equipped with the same Dec. 3, 2013
8594906 Diagnosis for multiple cylinder engine Nov. 26, 2013
8591712 Gas sensor element and gas sensor Nov. 26, 2013
8550016 Method and apparatus of controlling flow rate of primary recirculating exhaust gas in oxyfuel combustion boiler Oct. 8, 2013
8550017 Method and apparatus of controlling exhaust gas in oxyfuel combustion boiler Oct. 8, 2013
8545684 Sensing element and method of making the same Oct. 1, 2013
8535498 Electrochemical gas sensor and method for clamping the same Sep. 17, 2013
8516795 Exhaust gas sensor device, engine control device and method Aug. 27, 2013
8471721 Server rack having payload weighing function Jun. 25, 2013
8465636 Ammonium gas sensor Jun. 18, 2013
8459243 Method, systems and sensor for detecting humidity Jun. 11, 2013
8460526 Gas sensor and process for producing the same Jun. 11, 2013
8449743 Gas sensor May. 28, 2013
8449759 Apparatus and method for controlling a gas sensor May. 28, 2013
8443655 Method of controlling fuel composition learning May. 21, 2013
8419915 Gas sensor Apr. 16, 2013
8407986 Method for operating a lambda sensor during the heating phase Apr. 2, 2013
8404101 Apparatus and method for controlling a gas sensor Mar. 26, 2013
8402812 Gas concentration detection apparatus Mar. 26, 2013
8401766 Inter-cylinder air-fuel ratio imbalance determination apparatus for internal combustion engine Mar. 19, 2013
8393316 Internal-combustion-engine control apparatus Mar. 12, 2013
8394248 Gas sensor control device and nitrogen oxide concentration detection method Mar. 12, 2013
8382973 Method and apparatus for controlling multi-gas sensor Feb. 26, 2013
8377273 Gas sensor Feb. 19, 2013
8365587 Method and device for detecting abnormality of engine Feb. 5, 2013
8366893 Pumping electrode of gas sensor, method of manufacturing conductive paste, and gas sensor Feb. 5, 2013
8361306 Gas sensor control apparatus and method Jan. 29, 2013
8356512 Alternative fuel concentration estimating system, vehicle comprising alternative fuel concentration estimating system, and alternative fuel concentration estimating method Jan. 22, 2013
8308925 Gas sensor, control device thereof and method of measuring NOx concentration Nov. 13, 2012
8281642 Environmental gas sensor and method of manufacturing the same Oct. 9, 2012
8268147 Gas sensor control device and method Sep. 18, 2012
8257565 Sensor control apparatus Sep. 4, 2012
8257577 Gas sensor and manufacturing method thereof Sep. 4, 2012
8240188 Response sensing device of exhaust gas component concentration sensor Aug. 14, 2012

1 2 3 4 5 6 7 8










 
 
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