ClassID:

169014

G01N33/0054 - CPC Classification

Classification description:

Investigating or analysing materials by specific methods not covered by groups -; Gaseous mixtures, e.g. polluted air; General constructional details of gas analysers, e.g. portable test equipment concerning the detector; Specially adapted to detect a particular component for ammonia

Recent Application in this class:
#1
20260133171
2026-05-14

EMISSION APPARATUSES FOR SENSOR CROSS-SENSITIVITY TO AMMONIA AND ASSOCIATED SYSTEMS AND METHODS

#2
20260086076
2026-03-26

FECAL GAS TIME CURVE ANALYSIS METHOD FOR BRISTOL STOOL TYPE CLASSIFICATION

#3
20260023015
2026-01-22

SEMI-OPEN ATMOSPHERIC AMMONIA CONCENTRATION DETECTION SYSTEM AND METHOD FOR MEASURING ATMOSPHERIC AMMONIA CONCENTRATION

#4
20250271384
2025-08-28

MODULATION OF SENSOR FILM COMPOSITION FOR ENHANCED GAS DETECTION PERFORMANCE

#5
20250224387
2025-07-10

AMMONIA GAS SENSOR BASED ON SMALL-PERIOD LONGPERIOD FIBER GRATING

#6
20250160677
2025-05-22

Electrochemical Sensing for Breath Analysis

#7
20250076268
2025-03-06

PREPARATION METHOD OF PAPER-BASED SENSOR FOR DETECTING AMMONIA GAS, AND USE OF PAPER-BASED SENSOR

#8
20240201091
2024-06-20

DOSIMETER MATERIAL FOR AMMONIA AND/OR AMINES, PRODUCTION AND USE OF SAME

#9
20240192161
2024-06-13

GAS SENSOR AND CONTROL METHOD OF GAS SENSOR

#10
20240142425
2024-05-02

SYSTEM FOR TESTING BANDAGE WITH ODOR INHIBITION

#11
20240094179
2024-03-21

METAL OXIDE-POLYMER NANO COMPOSITE FOR AMMONIA SENSING AT TEMPERATURES BELOW AMBIENT INCLUDING SUB-ZERO TEMPERATURES

#12
20240067773
2024-02-29

ORGANIC CONDUCTING POLYMERS AND USES THEREOF

#13
20230273532
2023-08-31

Exhaust gas monitor for photoresist adhesion control

#14
20230260383
2023-08-17

VISIBLE RANGE DETECTION SYSTEM

#15
20230184731
2023-06-15

METHOD FOR RAPID IN SITU DETECTION OF AMMONIA

#16
20230091237
2023-03-23

SENSOR ELEMENT AND GAS SENSOR

#17
20230024759
2023-01-26

DETERMINING AN AMOUNT OF NITRIC OXIDE

#18
20220404327
2022-12-22

Method and Systems for Monitoring and Measuring the Amount of a Gas Dissolved in a Liquid

#19
20220326205
2022-10-13

Bismuth oxide based ammonia sensor

#20
20220291185
2022-09-15

Humidification type highly-sensitive/highly-selective ammonia detection method and detection device using nanomechanical sensor

#21
20220221801
2022-07-14

Exhaust gas monitor for photoresist adhesion control

#22
20220196619
2022-06-23

Low cost and wireless gas sensing paper sensor having UHF range

#23
20220119591
2022-04-21

Photo-patternable organic semiconductor (OSC) polymers and methods of formation and applications thereof

#24
20220113270
2022-04-14

Method for fabricating zinc oxide nanostructures and gas sensors

#25
20220026322
2022-01-27

Quantification of surface acidity on a low surface area material

#26
20210341406
2021-11-04

Sensors comprising electrically-conductive protein nanowires

#27
20210333232
2021-10-28

GAS CONCENTRATION DETECTION DEVICE

#28
20210325353
2021-10-21

Device and method for quantitative evaluation of deodorant performance

#29
20210310958
2021-10-07

DOSIMETER MATERIAL FOR AMMONIA AND/OR AMINES, PRODUCTION AND USE OF SAME

#30
20210293743
2021-09-23

Gas sensor set and method of measuring concentrations of a plurality of target components within a gas to be measured

#31
20210255138
2021-08-19

Method and device for determining the ammonia concentration and the nitrogen monoxide concentration in the exhaust gas flow of a motor vehicle

#32
20210164893
2021-06-03

SPECIES SPECIFIC SENSOR FOR EXHAUST GASES AND METHOD THEREOF

#33
20210148877
2021-05-20

SENSORS EMPLOYING A P-N SEMICONDUCTING OXIDE HETEROSTRUCTURE AND METHODS OF USING THEREOF

#34
20210125483
2021-04-29

Connected monitoring system

#35
20210104144
2021-04-08

Visible range detection system

#36
20210088470
2021-03-25

Liquid electrolyte for an electrochemical gas sensor

#37
20210079828
2021-03-18

Gas sensor control apparatus, gas sensor apparatus, and internal combustion engine control apparatus

#38
20210010999
2021-01-14

SYSTEM AND METHOD FOR INDICATING THE PRESENCE OF MAMMALIAN BLOOD OR OTHER MAMMALIAN BODILY FLUID

#39
20200400584
2020-12-24

FLUID SENSOR CARD

#40
20200371056
2020-11-26

GAS SENSING DEVICE AND MANUFACTURING METHOD THEREOF

#41
20200363370
2020-11-19

Method for monitoring a gas sensor

#42
20200363335
2020-11-19

Photonic gas sensor and method for producing a photonic gas sensor

#43
20200363326
2020-11-19

Real time monitoring of substance concentration, particularly of ammonia, in fish ponds and like environments

#44
20200333310
2020-10-22

Article storage apparatus and method of identifying condition of article therein

#45
20200309727
2020-10-01

GAS SENSOR AND SENSOR ELEMENT

#46
20200173719
2020-06-04

Method and system for cold storage health and content monitoring

#47
20200166475
2020-05-28

Gas sensor and gas concentration measurement method

#48
20200124555
2020-04-23

Ammonia gas detecting sensor using graphene doped with copper oxide nanopaticles and ammonia gas detecting device comprising the same

#49
20200040798
2020-02-06

Detection sensor comprising a selective high-electron-mobility transistor for detecting a gaseous or liquid component

#50
20200003724
2020-01-02

Gas sensor

#51
20200003717
2020-01-02

GAS SENSOR AND METHOD OF MANUFACTURING THE SAME

#52
20190360961
2019-11-28

Gas sensor

#53
20190302079
2019-10-03

MEASUREMENT APPARATUS

#54
20190302077
2019-10-03

Ammonia sensor element and gas sensor

#55
20190302050
2019-10-03

Gas sensor element, heater and gas sensor

#56
20190285599
2019-09-19

Method for calculating amount of ammonia in gas sample

#57
20190285597
2019-09-19

Apparatus and method for evaluating response time of gas sensor

#58
20190250123
2019-08-15

Particular-gas concentration-measuring apparatus and particular-gas concentration measuring system

#59
20190242827
2019-08-08

Zero-power detecting sensor of chemical substance and sensing method

#60
20190145945
2019-05-16

ELECTROCHEMICAL GAS SENSOR FOR USE IN ULTRA LOW OXYGEN STORAGE ENVIRONMENTS

#61
20190137441
2019-05-09

Gas sensor, and method for measuring concentrations of plurality of target components in gas to be measured

#62
20190128833
2019-05-02

Gas sensor, and method for measuring concentrations of plurality of target components in gas to be measured

#63
20190124825
2019-05-02

System and method for monitioring vapor concentrations

#64
20190107527
2019-04-11

Methods of evaluating deodorizing ability of superabsorbent polymer and product including the same

#65
20190101506
2019-04-04

Electrochemical gas sensor, liquid electrolyte and use of a liquid electrolyte in an electrochemical gas sensor

#66
20190049388
2019-02-14

FERMENTATION GAS SENSOR SYSTEM

#67
20190035249
2019-01-31

Air quality notification device

#68
20190033281
2019-01-31

SYSTEM FOR PROVIDING AIR QUALITY INFORMATION

#69
20190033279
2019-01-31

AIR QUALITY NOTIFICATION AND PROCESSING SYSTEM

#70
20190033277
2019-01-31

Device having a array of sensors on a single chip

#71
20190033248
2019-01-31

Amperometric electrochemical sensors, sensor systems and detection methods

#72
20190017981
2019-01-17

SENSORS EMPLOYING A P-N SEMICONDUCTING OXIDE HETEROSTRUCTURE AND METHODS OF USING THEREOF

#73
20180372718
2018-12-27

Non-contact soilage detector and flashlight

#74
20180335398
2018-11-22

Ionic-conducting resistor for exhaust constituent sensors

#75
20180313785
2018-11-01

Thermally stable ammonia gas sensor using ZnO-functionalized AlGaN/GaN heterostructure transistor

#76
20180306740
2018-10-25

Conductive textiles and uses thereof in functional devices

#77
20180267017
2018-09-20

System and method for trailing a wounded animal

#78
20180195990
2018-07-12

Gas sensors and methods of detecting gas

#79
20180188196
2018-07-05

System and method for determining one or more fluid concentrations in a fluid stream

#80
20180180569
2018-06-28

Ammonia sensor element

#81
20180172656
2018-06-21

Device having an array of sensors on a single chip

#82
20180172655
2018-06-21

Method for manufacturing an array of sensors on a single chip

#83
20180136157
2018-05-17

Gas sensor and method of using the same

#84
20180113103
2018-04-26

Apparatus for measuring ammonia concentration, system for measuring ammonia concentration, system for treating exhaust gas, and method for measuring ammonia concentration

#85
20180112582
2018-04-26

Apparatus for measuring ammonia concentration, system for measuring ammonia concentration, system for treating exhaust gas, and method for measuring ammonia concentration

#86
20180074028
2018-03-15

Colorimetric gas detection

#87
20180074009
2018-03-15

Gas sensor

#88
20180073989
2018-03-15

FLUID SENSOR CARD

#89
20180067073
2018-03-08

CONCENTRATION COMPUTATION APPARATUS

#90
20180059003
2018-03-01

Laser absorption spectroscopy system and method for discrimination of a first and a second gas

#91
20180052136
2018-02-22

Nanoporous semiconductor thin films

#92
20170369384
2017-12-28

DRYING APPARATUS FOR DRYING A SUBSTANCE, POULTRY MANAGEMENT SYSTEM AS WELL AS METHOD OF DRYING A SUBSTANCE

#93
20170333844
2017-11-23

Method and system for mitigating urea deposits within an SCR catalyst system

#94
20170315075
2017-11-02

Enhanced sensitivity of graphene gas sensors using molecular doping

#95
20170276657
2017-09-28

Gas detection sheet

#96
20170254767
2017-09-07

Gas sensor device, gas measurement method, and gas measurement device

#97
20170227490
2017-08-10

Gas sensor

#98
20170219549
2017-08-03

Chemosensing hydrogel for the detection of biogenic amines

#99
20170205383
2017-07-20

Ammonia gas sensor based on squaric acid derivative, preparation method and application thereof

#100
20170184560
2017-06-29

Multi-parametric environmental diagnostics and monitoring sensor node

#101
20170184538
2017-06-29

Ammonia gas sensor and method for measuring concentration of ammonia gas

#102
20170153199
2017-06-01

Nanocrystalline indium tin oxide sensors and associated method of use

#103
20170146450
2017-05-25

SPECIES SPECIFIC SENSOR FOR EXHAUST GASES AND METHOD THEREOF

#104
20170106338
2017-04-20

Reductant dosing control using prediction of exhaust species in selective catalytic reduction

#105
20170102354
2017-04-13

Multiple gas detection device

#106
20170096348
2017-04-06

Ammonia adsorbent

#107
20170082605
2017-03-23

Rapid small volume detection of blood ammonia

#108
20170082565
2017-03-23

Low concentration ammonia nanosensor

#109
20170067850
2017-03-09

Gas sensor and sensor device

#110
20170038326
2017-02-09

Highly selective nanostructure sensors and methods of detecting target analytes

#111
20170030893
2017-02-02

Rapid small volume detection of blood ammonia

#112
20160290980
2016-10-06

Detection of amines

#113
20160282151
2016-09-29

INTEGRATED GAS SENSOR

#114
20160252297
2016-09-01

Gas sensor module, refrigerator having the same and control method for the refrigerator

#115
20160216223
2016-07-28

Multisensing Multiparameter Design Using Dynamic Parallel Resistances on Sensing Element Substrate

#116
20160169852
2016-06-16

Techniques for active passivation

#117
20160161461
2016-06-09

Electronic nose for determination of meat freshness

#118
20160153814
2016-06-02

Gas sensor

#119
20160139098
2016-05-19

Modular measurement apparatus

#120
20160123947
2016-05-05

Ammonia Nanosensors, and Environmental Control System

#121
20160116430
2016-04-28

Liquid electrolyte for an electrochemical gas sensor

#122
20160109421
2016-04-21

Sensing system for detecting a substance in a dialysate

#123
20160103092
2016-04-14

Electrochemical gas sensor, liquid electrolyte and use of a liquid electrolyte in an electrochemical gas sensor

#124
20160011071
2016-01-14

Methods and systems for detecting defects in a fuel cell stack

#125
20150328586
2015-11-19

Method and system for mitigating urea deposits within an SCR catalyst system

#126
20150316522
2015-11-05

Methods and devices for detection of the concentration of at least one gaseous target substance and use of a gas monitoring device

#127
20150300982
2015-10-22

Microbially-based sensors for environmental monitoring

#128
20150293069
2015-10-15

Method for determining expected shelf life of seafood

#129
20150276698
2015-10-01

Gas cross-sensitivity analysis method and system thereof

#130
20150226702
2015-08-13

Rapid small volume detection of blood ammonia

#131
20150098867
2015-04-09

ODOR SOURCE RELEASE BASED ON ODOR DETECTION AND USER PREFERENCE INFORMATION

#132
20150013431
2015-01-15

Multigas sensor and multigas sensor device

#133
20150004898
2015-01-01

Air sampling system providing compound discrimination via comparative PID approach

#134
20140346042
2014-11-27

Gas sensor

#135
20140311350
2014-10-23

System and method for sensing ammonia

#136
20140311217
2014-10-23

Method for detecting fishy water odor from air conditioner, reproducing fishy water odor and preparing corresponding fishy water odor composition

#137
20140305190
2014-10-16

Mist-containing gas analysis device

#138
20140301899
2014-10-09

Gas analysis apparatus

#139
20140299470
2014-10-09

Electrochemical gas sensor with an ionic liquid as electrolyte for the detection of ammonia and amines

#140
20140293283
2014-10-02

Ammonia sensor using wavelength modulation spectroscopy

#141
20140291218
2014-10-02

Sensing system for detecting a substance in a dialysate

#142
20140268529
2014-09-18

Array of elements and a human-computer interface device

#143
20140049642
2014-02-20

GAS MONITORING SYSTEM AND GAS MONITOR

#144
20140021067
2014-01-23

Low concentration ammonia nanosensor

#145
20140017794
2014-01-16

Method and system for mitigating urea deposits within an SCR catalyst system

#146
20130336841
2013-12-19

CATALYST DETERIORATION DETERMINATION SYSTEM

#147
20130157377
2013-06-20

Ammonia compound concentration measuring device and ammonia compound concentration measuring method

#148
20130075279
2013-03-28

Microbially-based sensors for environmental monitoring

#149
20120228138
2012-09-13

Array-type NHsensor

#150
20120145543
2012-06-14

MULTIGAS SENSOR

#151
20120120398
2012-05-17

Micro-cavity gas and vapor sensors and detection methods

#152
20120108465
2012-05-03

FIBER ARRAY SENSOR

#153
20120067744
2012-03-22

Impurity detection device and method

#154
20120055789
2012-03-08

Amperometric electrochemical cells and sensors

#155
20120034646
2012-02-09

Detection of H. pylori utilizing unlabeled urea

#156
20120028363
2012-02-02

METAL POROUS MATERIAL, METHOD FOR PREPARING THE SAME AND METHOD FOR DETECTING NITROGEN-CONTAINING COMPOUNDS

#157
20120013911
2012-01-19

Device and method for optical sensing of substances or environmental conditions

#158
20110306140
2011-12-15

Molecular heterobimetallic chemodosimetric sensor for the detection of biogenic amines

#159
20110139618
2011-06-16

CERAMIC EXHAUST GAS SENSOR

#160
20110048970
2011-03-03

Method and apparatus for controlling multi-gas sensor

#161
20110048944
2011-03-03

Measuring Device for Determining NH3

#162
20110011152
2011-01-20

Ammonia concentration detection sensor

#163
20100330692
2010-12-30

AMMONIA DETECTION AND MEASUREMENT DEVICE

#164
20100288651
2010-11-18

MULTI-WALLED CARBON NANOTUBE SENSOR COMPRISING INTERCALATING SPECIES AND METHOD OF DETECTION

#165
20100282619
2010-11-11

Ammonia gas sensors with lanthanide vanadate sensing electrode

#166
20100282618
2010-11-11

Ammonia gas sensors with vanadium-based sensing electrode

#167
20100279425
2010-11-04

Nanocrystalline indum tin oxide sensors and arrays

#168
20100218593
2010-09-02

Semiconductor tranducer and its use in a sensor for detecting electron-donor or electron-acceptor species

#169
20100171043
2010-07-08

SINGLE ELEMENT SENSOR WITH MULTIPLE OUTPUTS

#170
20100162790
2010-07-01

SENSOR ELEMENT FOR DETERMINING THE CONCENTRATION OF AN OXIDIZABLE GAS COMPONENT IN A MEASURING GAS

#171
20100139365
2010-06-10

Field effect transistor gas sensor having a housing and porous catalytic material contained therein

#172
20100077833
2010-04-01

Exhaust gas sensor and method for determining concentrations of exhaust gas constituents

#173
20100062536
2010-03-11

DETECTOR FOR THE DETECTION OF CHEMICAL WARFARE AGENTS AND METHOD OF MANUFACTURE THEREOF

#174
20100032292
2010-02-11

AMMONIA GAS SENSOR

#175
20100031730
2010-02-11

DEVICE FOR MEASURING THE AMMONIA CONTENT IN A GAS MIXTURE

#176
20090308747
2009-12-17

AMMONIA SENSOR

#177
20090301878
2009-12-10

AMMONIA SENSOR ELEMENT, METHOD OF MAKING THEREOF, AND AMMONIA SENSOR DERIVED THEREFROM

#178
20090301877
2009-12-10

Gas sensor

#179
20090266142
2009-10-29

Systems and methods for sensing an ammonia concentration in exhaust gases

#180
20090218220
2009-09-03

Amperometric Electrochemical Cells and Sensors

#181
20090211906
2009-08-27

Ammonium gas sensor

#182
20090097031
2009-04-16

Micro-cavity gas and vapor sensors and detection methods

#183
20090090170
2009-04-09

Etch resistant gas sensor

#184
20090065370
2009-03-12

AMMONIA GAS SENSOR METHOD AND DEVICE

#185
20090014331
2009-01-15

AMMONIA GAS SENSOR

#186
20090014330
2009-01-15

Ammonia gas sensor

#187
20080274559
2008-11-06

Gas Sensor for Determining Ammonia

#188
20080201086
2008-08-21

Method and Apparatus for Measuring Amount of Generated Ammonia

#189
20080093226
2008-04-24

Ammonia nanosensors, and environmental control system

#190
20080041136
2008-02-21

Ammonia detection device and related methods

#191
20070161113
2007-07-12

Ammonia sensor and system for use

#192
20070158209
2007-07-12

Gas sensor and method thereof

#193
20070144237
2007-06-28

Air quality monitor

#194
20070138029
2007-06-21

Impurity detection device and method

#195
20070117210
2007-05-24

Measurement of nitrogen content in a gas mixture by transforming the nitrogen into a substance detectable with nondispersive infrared detection

#196
20070056352
2007-03-15

Drift compensation for an impedimetric exhaust gas sensor by variable bias voltage

#197
20070045114
2007-03-01

Gas sensor and method for forming same

#198
20060266659
2006-11-30

Ammonia gas sensors

#199
20060211123
2006-09-21

Sensing element and method of making

#200
20060200969
2006-09-14

Ammonia sensor element, heater, and method for making the same

#201
20060194330
2006-08-31

Ammonia gas sensor method and device

#202
20060113199
2006-06-01

Gas detection apparatus and method

#203
20060021420
2006-02-02

Ammonia sensor element, heater, and method for making the same

#204
20050229677
2005-10-20

High-temperature gas sensors

#205
20050130338
2005-06-16

Method for producing and managing a sensor

#206
20050127920
2005-06-16

Method and system for impedance measurement of a zeolite-based ammonia sensor

#207
17715362
2022-10-11

Heat-not-burn activity detection device, system and method

#208
17481615
2022-04-12

Heat-not-burn activity detection device, system and method

#209
17161842
2023-09-19

Modular health exposure sensor system

#210
16943083
2022-07-12

Self-indicating colorimetric response materials for removal and sensing of toxic chemicals and narcotics

#211
16382186
2020-07-21

Fiber optic sensing apparatus, system, and method of use thereof

#212
15964850
2020-08-04

Self-indicating colorimetric response materials for removal and sensing of toxic chemicals and narcotics

#213
15963524
2019-04-16

Self-indicating zirconium hydroxide and other porous metal hydroxides incorporating additional metals, metal oxides, and/or metal salts for toxic chemical removal and sensing

#214
15689664
2019-12-03

Use of metal-organic frameworks and metal oxides for sensing chemicals using electrical impedance spectroscopy

#215
15195644
2018-07-03

Gas-sensing apparatus with a self-powered microheater

#216
14875772
2019-10-08

Low cost, fast and sensitive NOx and NH3 sensor

#217
14743425
2018-05-01

Self-indicating porous metal hydroxides incorporating metal reactants for toxic chemical removal and sensing