ClassID:

194895

G08B21/16 - CPC Classification

Classification description:

Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for; Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms Combustible gas alarms

Recent Application in this class:
#1
20260030969
2026-01-29

METHOD AND SYSTEM FOR DETERMINING AT-RISK AREAS AROUND AN AIRCRAFT

#2
20260030968
2026-01-29

INTELLIGENT INERT MEASUREMENT MODE

#3
20260024430
2026-01-22

REMOTE MONITORING SYSTEM FOR HAZARDOUS LOCATIONS

#4
20250390821
2025-12-25

METHOD FOR UTILITY INFRASTRUCTURE MONITORING

#5
20250369941
2025-12-04

ARRANGEMENT WITH A GAS MEASURING DEVICE AND A CONTAINER AND METHOD USING SUCH AN ARRANGEMENT

#6
20250322737
2025-10-16

SYSTEM AND METHOD FOR PREVENTING THE PREPARATION OF IMPROVISED EXPLOSIVE MATERIALS AND DEVICES

#7
20250321600
2025-10-16

METHOD AND SYSTEM FOR PROVIDING A CENTRALIZED APPLIANCE HUB

#8
20250299556
2025-09-25

SYSTEMS AND METHODS FOR TEMPORARY PAUSING OF UTILITY ALARM

#9
20250285526
2025-09-11

MONITORING CHEMICALS AND GASES ALONG PIPES, VALVES AND FLANGES

#10
20250163862
2025-05-22

FUGITIVE GAS DETECTION SYSTEM

#11
20250154914
2025-05-15

ENGINE OVERSPEED DEVICE AND METHOD

#12
20250153857
2025-05-15

HYDROGEN GAS DETECTION FOR AIRCRAFT

#13
20250065831
2025-02-27

COMBUSTION AND EXPLOSION-PROOFING SAFETY MANAGEMENT SYSTEM FOR VEHICLE-MOUNTED FLAMMABLE AND EXPLOSIVE ARTICLES

#14
20240418009
2024-12-19

SIGNAL-RESPONSIVE APPARATUS FOR PROVIDING AN EXIT PASSAGE FROM A BUILDING

#15
20240412615
2024-12-12

Unmanned Aerial System for Autonomous Gas Leakage Detection, Quantification, and Mitigation

#16
20240362988
2024-10-31

INTELLIGENT INERT MEASUREMENT MODE

#17
20240329023
2024-10-03

Detection Case for Portable Device

#18
20240321078
2024-09-26

Method, Internet of Things system, and storage medium for generating inspection scheme based on smart gas

#19
20240321077
2024-09-26

METHODS AND INTERNET OF THINGS (IOT) SYSTEMS FOR DETERMINING OPENING AND CLOSING PLAN OF GAS VALVE OF GAS GATE STATION

#20
20240257626
2024-08-01

Network Edge Detection and Notification of Gas Pressure Situation

#21
20240177594
2024-05-30

METHODS FOR DETECTING GAS ALARMS BASED ON SMART GAS AND INTERNET OF THINGS (IOT) SYSTEMS

#22
20240134400
2024-04-25

METHOD AND SYSTEM FOR PROVIDING A CENTRALIZED APPLIANCE HUB

#23
20240125747
2024-04-18

APPARATUS AND METHODS FOR REDUCING FUGITIVE GAS EMISSIONS AT OIL FACILITIES

#24
20240085392
2024-03-14

GAS DETECTOR

#25
20240061120
2024-02-22

LASER GAS DETECTOR AND LASER GAS DETECTION SYSTEM

#26
20240026846
2024-01-25

POWER SUPPLY DEVICE AND METHOD FOR VEHICLE EMERGENCY STARTING

#27
20240013646
2024-01-11

Monitoring chemicals and gases along pipes, valves and flanges

#28
20230417719
2023-12-28

Apparatus and methods for reducing fugitive gas emissions at oil facilities

#29
20230377440
2023-11-23

Method for abnormal judgment and safety inspection of smart gas harmful components, internet of things system, and medium thereof

#30
20230377439
2023-11-23

Method for early warning smart gas harmful components, internet of things system, and medium thereof

#31
20230368632
2023-11-16

Methods, internet of things systems, and storage media for smart gas pipeline network inspection

#32
20230368631
2023-11-16

Methods for gas leakage emergency treatment based on indoor safety and smart gas internet of things systems

#33
20230360511
2023-11-09

Methods and systems for automatically generating a remedial action in an industrial facility

#34
20230296064
2023-09-21

Fugitive gas detection system

#35
20230290239
2023-09-14

System and Method for Residential Methane Detection

#36
20230279819
2023-09-07

Engine overspeed device and method

#37
20230252877
2023-08-10

Methods and internet of things (IoT) systems for handling emergency based on call center of smart gas

#38
20230204551
2023-06-29

Apparatus and methods for reducing fugitive gas emissions at oil facilities

#39
20230169843
2023-06-01

Methods for monitoring smart gas harmful components, internet of things system, and mediums thereof

#40
20230152288
2023-05-18

Apparatus and methods for reducing fugitive gas emissions at oil facilities

#41
20230146813
2023-05-11

Compensator in a detector device

#42
20230123845
2023-04-20

Monitoring system for use with mobile communication device

#43
20230071381
2023-03-09

Methods for predicting gas leakage based on indoor safety and smart gas Internet of Things systems

#44
20230005353
2023-01-05

Network edge detection and notification of gas pressure situation

#45
20230004177
2023-01-05

Method and system for providing a centralized appliance hub

#46
20220372924
2022-11-24

Fugitive gas detection system

#47
20220366774
2022-11-17

Intelligent inert measurement mode

#48
20220326203
2022-10-13

Apparatus and methods for reducing fugitive gas emissions at oil facilities

#49
20220326201
2022-10-13

Carbon monoxide sensor system

#50
20220316999
2022-10-06

ASPIRATING PATHOGEN DETECTION SYSTEM

#51
20220291186
2022-09-15

Process for analyzing data of at least one mobile gas measuring device and of a stationary gas measuring device as well as system for monitoring at least one gas concentration

#52
20220291070
2022-09-15

System and method for monitoring and responding to sensed environmental events and sensors therefor

#53
20220198904
2022-06-23

Network edge detection and notification of gas pressure situation

#54
20220139193
2022-05-05

Gas alarm replacement warning method and device, and electronic apparatus including the device

#55
20220108242
2022-04-07

Method and system for utility power line monitoring

#56
20220107296
2022-04-07

Apparatus and methods for reducing fugitive gas emissions at oil facilities

#57
20220028242
2022-01-27

Intelligent inert measurement mode

#58
20210366255
2021-11-25

System and method for risk classification and warning of flashover events

#59
20210335117
2021-10-28

GAS DETECTOR SYSTEMS AND METHODS FOR MONITORING GAS LEAKS FROM BURIED PIPELINES

#60
20210335116
2021-10-28

Monitoring chemicals and gases along pipes, valves and flanges

#61
20210321174
2021-10-14

Laser gas detector and laser gas detection system

#62
20210318236
2021-10-14

Laser gas detector and laser gas detection system

#63
20210310428
2021-10-07

Engine overspeed device and method

#64
20210293652
2021-09-23

Method and device for judging gas leakage, and electronic device

#65
20210287509
2021-09-16

Multipurpose alert system for smoke, fire, natural gas, and/or carbon monoxide

#66
20210283441
2021-09-16

FIRE EXTINGUISHING SYSTEM FOR LITHIUM BATTERY ENERGY STORAGE UNIT BASED ON STAGEWISE WARNING AND MULTIPLE SPRAYING

#67
20210270655
2021-09-02

Gas meter

#68
20210153574
2021-05-27

Illuminated indicator assembly having particular application to clothing

#69
20210142646
2021-05-13

COMMUNICATING BETWEEN A CONTROL UNIT AND A HAZARD SENSOR

#70
20210073692
2021-03-11

METHOD AND SYSTEM FOR UTILITY INFRASTRUCTURE CONDITION MONITORING, DETECTION AND RESPONSE

#71
20200383172
2020-12-03

Worker safety system with scan mode

#72
20200333307
2020-10-22

Apparatus and methods for reducing fugitive gas emissions at oil facilities

#73
20200333272
2020-10-22

Method for predicting corrosion and spontaneous combustion of sulfur-related petrochemical equipment

#74
20200320844
2020-10-08

Compensator in a detector device

#75
20200273315
2020-08-27

Remote Confined Work Space Monitoring System and Method

#76
20200249202
2020-08-06

Methane gas sensor

#77
20200232959
2020-07-23

Apparatus and methods for reducing fugitive gas emissions at oil facilities

#78
20200219375
2020-07-09

METHOD AND APPARATUS FOR MONITORING BUILDING ALARM SYSTEMS

#79
20200182654
2020-06-11

Gas meter management system

#80
20200150078
2020-05-14

System and method for portable and area detection with a heat index sensor

#81
20200150077
2020-05-14

Portable gas sensing instrument

#82
20200143659
2020-05-07

Monitoring chemicals and gases along pipes, valves and flanges

#83
20200135009
2020-04-30

System and method providing early prediction and forecasting of false alarms by applying statistical inference models

#84
20200135001
2020-04-30

SAFETY CARD BASED ON WIRELESS MESH NETWORK

#85
20200033900
2020-01-30

Method and system for providing a centralized appliance hub

#86
20190311599
2019-10-10

Intelligent inert measurement mode

#87
20190257790
2019-08-22

Methane gas sensor

#88
20190250134
2019-08-15

Gas alarm, control device and program

#89
20190212012
2019-07-11

Alert sensing stove assembly

#90
20190203653
2019-07-04

Fugitive gas detection system

#91
20190188988
2019-06-20

Gas-measuring device with personnel locator

#92
20190172333
2019-06-06

Automatic smoke/carbon monoxide evacuation power switch method and system

#93
20190154871
2019-05-23

Methods and systems for detecting motion corresponding to a field of interest

#94
20190154609
2019-05-23

Gas alarm device and gas detection method

#95
20190147725
2019-05-16

Radio equipment

#96
20190114893
2019-04-18

Gas detection device

#97
20190086080
2019-03-21

Systems and methods for leak detection and remote, non-intrusive, automatic shutoff in residential regulators

#98
20190066479
2019-02-28

METHOD AND SYSTEM FOR MONITORING AND PREDICTING GAS LEAK

#99
20190059130
2019-02-21

COMBINATION WIRELESS ACCESS POINT AND EMERGENCY ASSISTANCE DEVICE

#100
20190019397
2019-01-17

LAYERED DETECTOR DESIGN CONNECTED WITH SMARTPHONE BY EARPHONE TERMINAL

#101
20180330594
2018-11-15

Monitoring chemicals and gases along pipes, valves and flanges

#102
20180313135
2018-11-01

Removable security device

#103
20180182225
2018-06-28

Gas leak detection and location determination

#104
20180082558
2018-03-22

System and a method for detecting low concentrations of specific chemical compounds in the air of an aircraft cabin

#105
20180024091
2018-01-25

Combustible gas sensing element with cantilever support

#106
20180018866
2018-01-18

Networked audible and visual alarm apparatus for synchronized alerting with a base station and electronic coding for each alarm

#107
20180007968
2018-01-11

GAS SENSING FOR AN AEROSOL DELIVERY DEVICE

#108
20170365151
2017-12-21

DEVICE FOR NOTIFICATION OF GAS CONDITIONS SYSTEM AND METHOD

#109
20170359094
2017-12-14

WIRELESS COMMUNICATION DEVICE INSIDE MANHOLE

#110
20170352243
2017-12-07

Methods and systems for automatically generating a remedial action in an industrial facility

#111
20170221332
2017-08-03

GAS DETECTION DEVICE

#112
20170193790
2017-07-06

Gas leak detection and location determination

#113
20170154509
2017-06-01

Unsafe work condition temperature alerts in portable gas detectors

#114
20170140619
2017-05-18

WIRELESS HOME SAFETY 911 SYSTEM

#115
20170102369
2017-04-13

Multi-sense environmental monitoring device and method

#116
20170069193
2017-03-09

Mobile monitoring device

#117
20170061783
2017-03-02

System and method providing early prediction and forecasting of false alarms by applying statistical inference models

#118
20170024992
2017-01-26

Reconfigurable gas sensor architecture with a high sensitivity at low temperatures

#119
20170023520
2017-01-26

Reconfigurable gas sensor architecture with a high sensitivity at low temperatures

#120
20170016866
2017-01-19

Reconfigurable gas sensor architecture with a high sensitivity at low temperatures

#121
20160163175
2016-06-09

SAFETY AND FUEL LEVEL COMMUNICATION SYSTEM

#122
20160019769
2016-01-21

System, apparatus, and method for sensing gas

#123
20150338315
2015-11-26

Enclosure diagnostic and control systems

#124
20150316472
2015-11-05

Infrared detection device

#125
20150294546
2015-10-15

Low power detection and alarm

#126
20150270909
2015-09-24

Wireless ultrasonic data transmission for explosive environments

#127
20150269877
2015-09-24

Integrated security system for warning of dangerous substances that are dispersed by winds

#128
20150211885
2015-07-30

SMART METHANE MONITOR

#129
20150204830
2015-07-23

Multi-sense environmental monitoring device and method

#130
20140111344
2014-04-24

INTEGRATED GAS DETECTOR INTEGRATING WITH AUDIBLE AND VISUAL ALARMS

#131
20130327141
2013-12-12

MULTIFUNCTION SENSING SYSTEM FOR USE WITH DEVICES EMPLOYING COMBUSTION OR BURNING

#132
20130009775
2013-01-10

COMMUNICATION SYSTEM AND ALARM DEVICE

#133
20120293334
2012-11-22

System and method for warning a fire and flammable gas

#134
20120227929
2012-09-13

DETECTOR HEATING AND/OR COOLING

#135
20120105236
2012-05-03

Method and apparatus for appliance gas leak detection

#136
20110316699
2011-12-29

Multi-sense environmental monitoring device and method

#137
20110304470
2011-12-15

Gas concentration monitor

#138
20110248857
2011-10-13

Smart methane monitor

#139
20110169649
2011-07-14

Gas sensing method and instrument therefor

#140
20110117923
2011-05-19

SYSTEM FOR MONITORING POSITIONS OF MOVING OBJECT

#141
20110050434
2011-03-03

Security system for the vent stack of a structure

#142
20110041588
2011-02-24

Sensor for detecting hydrocarbons

#143
20110004353
2011-01-06

Gas meter and gas safety system

#144
20100302048
2010-12-02

INTELLIGENT EXIT SIGN

#145
20100238049
2010-09-23

COMMUNICATION SYSTEM

#146
20100219960
2010-09-02

Detector system and method to detect or determine a specific gas within a gas mixture

#147
20100219948
2010-09-02

COMMUNICATION SYSTEM AND ALARM DEVICE

#148
20100073174
2010-03-25

Wireless Smoke Detector Power Cut-Off System

#149
20100033336
2010-02-11

Natural gas alarm

#150
20100019912
2010-01-28

Manhole security system

#151
20090200466
2009-08-13

Thermography camera configured for gas leak detection

#152
20090160661
2009-06-25

Alarm system employing existing conductive aspect of copper lines as well as optional pressure switch sensor for triggering a copper theft event

#153
20090151652
2009-06-18

Gas water heater with harmful gas monitoring and warning functions and the method of monitoring and warning

#154
20090060246
2009-03-05

Techniques for protection of acoustic devices

#155
20090033503
2009-02-05

Use of heating and/or ventilation ductwork to broadcast alarm conditions

#156
20090023421
2009-01-22

Personal multimedia communication system and network for emergency services personnel

#157
20080303677
2008-12-11

Alarm Apparatus and Adaptor

#158
20080258904
2008-10-23

ALARM DEVICE AND SYSTEM

#159
20080180261
2008-07-31

Carbon monoxide and explosive gas shut off system

#160
20080180260
2008-07-31

Carbon monoxide and explosive gas shut off system

#161
20080068190
2008-03-20

COMMUNICATION APPARATUS

#162
20080048853
2008-02-28

Backdraft detector

#163
20070281745
2007-12-06

Personal multimedia communication system and network for emergency services personnel

#164
20070241261
2007-10-18

Safety indicator and method

#165
20070193342
2007-08-23

Sensor for detecting hydrocarbons

#166
20070182574
2007-08-09

Automatic garage door response system for carbon monoxide or carbon monoxide and smoke detection

#167
20070132601
2007-06-14

Gas alarm system with wind direction indicator

#168
20070069882
2007-03-29

Intelligent exit sign

#169
20070052543
2007-03-08

Enclosure system allowing for hot work within the vicinity of flammable and combustible material

#170
20070001865
2007-01-04

Smoke detector

#171
20060114114
2006-06-01

Wireless terminal with gas leakage detection function, gas leakage detection system using the same, and gas leakage notification method

#172
20060103521
2006-05-18

Combination airborne substance detector

#173
20060071771
2006-04-06

Device for security systems for operation of habitats on installations

#174
20060066452
2006-03-30

System for controlling ignition sources when flammable gas is sensed

#175
20060023681
2006-02-02

System and method for tracking assets using an ad-hoc Peer-to-Peer wireless network

#176
20050212680
2005-09-29

Self-propelled cleaner

#177
20050151661
2005-07-14

Enclosure system for hot work within the vicinity of flammable or combustible material

#178
20050116832
2005-06-02

Gas safety detector having self-detection function

#179
20050017896
2005-01-27

Apparatus for monitoring a field device

#180
18300299
2024-12-31

Skid mounted compressed natural gas (CNG) metering and regulation station having IR and UV gas leak detection

#181
17027417
2022-05-24

Security and safety monitor

#182
15408597
2017-08-29

Networked audible and visual alarm apparatus and method of synchronized alerting

#183
15010948
2017-04-04

Gas detector and method for monitoring gas in a confined space