ClassID:

168447

G01N27/225 - CPC Classification

Classification description:

Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance for determining moisture content, e.g. humidity by using hygroscopic materials

Recent Application in this class:
#1
20260049956
2026-02-19

SENSOR ARRANGEMENT FOR SENSING A FILLING STATE OF AN ABSORBENT ARTICLE

#2
20250189400
2025-06-12

AUTOMATED AND WIRELESS ACCELERATED HEAT TREAT LIFE TESTING SYSTEM

#3
20250186268
2025-06-12

DETECTON UNIT WITH CONDUCTIVE RUBBER

#4
20240319128
2024-09-26

WIRELESS SENSOR BASED ON LC RESONATOR FOR MONITORING SOIL WATER CONTENT

#5
20240319127
2024-09-26

Moisture sensor having integrated heating element

#6
20240280527
2024-08-22

Humidity Sensor

#7
20240248059
2024-07-25

MONOLITHIC HUMIDITY SENSOR DEVICES AND METHODS OF MANUFACTURE

#8
20240230574
2024-07-11

HUMIDITY SENSOR WITH IMPROVED CONTAMINANT SEALING

#9
20240077448
2024-03-07

Gas Permeable Electrode

#10
20240063154
2024-02-22

Method of forming a sensor device having moisture sensitive dielectric layer with integrally formed projections

#11
20230051698
2023-02-16

MOISTURE ABSORBING SENSOR, RFID TAG, AND MOISTURE ABSORPTION AMOUNT MEASUREMENT SYSTEM

#12
20230017494
2023-01-19

DETECTION DEVICE AND READER FOR MEASURING THE AMOUNT OF WATER CONTENT IN BUILDING STRUCTURES

#13
20220373494
2022-11-24

Moisture sensor

#14
20220365018
2022-11-17

Monolithic humidity sensor devices and methods of manufacture

#15
20220276192
2022-09-01

Sensor

#16
20220252534
2022-08-11

Method of forming a sensor device

#17
20220249296
2022-08-11

MOISTURE DETECTION AND ESTIMATION WITH MULTIPLE FREQUENCIES

#18
20220178862
2022-06-09

Fast humidity sensor and a method for calibrating the fast humidity sensor

#19
20220120628
2022-04-21

SENSOR CIRCUIT INTEGRATING STANDARD CMOS SENSORS WITH ENERGY EFFICIENCY AND SENSOR APPARATUS HAVING SAME

#20
20210310974
2021-10-07

MULTI-SENSORY DEVICE INTEGRATED IN A SINGLE STRUCTURE

#21
20210293737
2021-09-23

Sensor platform

#22
20210181138
2021-06-17

Device for measuring pressure, gas and / or moisture based on ambient humidity

#23
20210148846
2021-05-20

Device for measuring pressure and / or moisture based on ambient humidity

#24
20210055247
2021-02-25

Moisture-sensitive film and sensor using same

#25
20210010965
2021-01-14

Humidity sensor and related methods

#26
20200393399
2020-12-17

Sensor and production method for same

#27
20200363361
2020-11-19

Wireless sensor with multiple sensing options

#28
20200283886
2020-09-10

Method For Manufacturing A Humidity Sensor And Humidity Sensor

#29
20200150066
2020-05-14

Gas sensor

#30
20200132616
2020-04-30

Printed hygroscopic electrodes for low-cost capacitive relative humidity sensors

#31
20200072778
2020-03-05

Moisture sensor

#32
20200057014
2020-02-20

Sensor device, measuring system and measuring method for detecting presence of liquid and/or humidity

#33
20200025704
2020-01-23

Capacitive gas sensors and manufacturing method thereof

#34
20190391104
2019-12-26

CAPACITIVE SENSOR FOR DETECTING A MEDIUM, AND CORRESPONDING METHOD

#35
20190360957
2019-11-28

3D noncontact humidity sensing technologies and methods of use thereof

#36
20190302048
2019-10-03

Humidity sensor

#37
20190277790
2019-09-12

Chip substrate, manufacturing method thereof, and gene sequencing chip and method

#38
20190227019
2019-07-25

Laterally actuated amplified capacitive vapor sensor

#39
20190204269
2019-07-04

Inductive humidity sensor and method

#40
20190162715
2019-05-30

Moisture detection element, exhaled gas detection device, exhaled air inspection system, and dew condensation removal method

#41
20190097323
2019-03-28

Radio frequency identification (RFID) moisture tag(s) and sensors with extended sensing via capillaries

#42
20190087885
2019-03-21

DIAPER ORDERING SYSTEM AND METHOD

#43
20190086354
2019-03-21

HUMIDITY SENSOR

#44
20180348157
2018-12-06

Humidity sensor and related methods

#45
20180299397
2018-10-18

Humidity sensing element and hygrometer

#46
20180284048
2018-10-04

Moisture detection element, gas detection device, and breath inspection system

#47
20180275009
2018-09-27

Water leakage detector

#48
20180245962
2018-08-30

Air flow rate measurement device

#49
20180180769
2018-06-28

Method in connection with a radiosonde and system

#50
20180120248
2018-05-03

Air physical quantity sensor

#51
20180100825
2018-04-12

Sensor of volatile substances with integrated heater and process for manufacturing a sensor of volatile substances

#52
20180031510
2018-02-01

Humidity sensor

#53
20170315074
2017-11-02

Micromechanical moisture sensor device and corresponding manufacturing method

#54
20170254769
2017-09-07

Method for fabrication of a sensor device

#55
20170248537
2017-08-31

Relative humidity sensor and method

#56
20170241934
2017-08-24

Matric Potential Sensor

#57
20170214142
2017-07-27

Radio frequency identification (RFID) moisture tag(s) and sensors with extended sensing via capillaries

#58
20170168001
2017-06-15

Capacitive sensor for detecting a medium, and corresponding method

#59
20170164887
2017-06-15

APPARATUS AND METHOD FOR ESTIMATING CHANGES TO HUMAN HEALTH BASED ON MONITORING HAIR PARAMETERS

#60
20170162931
2017-06-08

Wireless sensor with oppositely positioned antenna and sensing circuitry

#61
20170160220
2017-06-08

Wireless sensor with multiple sensing options

#62
20170138882
2017-05-18

CAPACITIVE HUMIDITY SENSOR

#63
20170122783
2017-05-04

Sensor chip used for multi-physical quantity measurement and preparation method thereof

#64
20170082567
2017-03-23

Trench based capacitive humidity sensor

#65
20170038327
2017-02-09

Systems and methods for humidity measurement using dielectric material-based relative humidity sensors

#66
20170003251
2017-01-05

Rotary encoder having function to obtain moisture absorbing amount of desiccant

#67
20160334354
2016-11-17

Sensing system for a humidity sensor

#68
20160299095
2016-10-13

Relative humidity sensor and method

#69
20160178553
2016-06-23

Electronic moisture sensor

#70
20160091446
2016-03-31

Sensor chip

#71
20160077028
2016-03-17

Humidity sensor

#72
20160069831
2016-03-10

Compact sensor module for a combination of pressure, humidity and/or temperature sensors

#73
20150219582
2015-08-06

Sensor of volatile substances with integrated heater and process for manufacturing a sensor of volatile substances

#74
20150153297
2015-06-04

Capacitive humidity sensor with graphene electrode

#75
20150153296
2015-06-04

Humidity sensor and sensor element

#76
20140369888
2014-12-18

Humidity determining device and environmental tester including the same

#77
20140296808
2014-10-02

Capacitive wetness sensor and method for manufacturing the same

#78
20140291778
2014-10-02

Integrated device of a capacitive type for detecting humidity, in particular manufactured using a CMOS technology

#79
20140218055
2014-08-07

Capacitive humidity sensor with hysteresis compensation

#80
20140216153
2014-08-07

Humidity sensor with temperature compensation

#81
20140139241
2014-05-22

Capacitive humidity sensor

#82
20130342225
2013-12-26

Capacitive analysis of a moving test material

#83
20130287062
2013-10-31

Moisture sensor arrangement

#84
20130063163
2013-03-14

Environment sensor

#85
20130015864
2013-01-17

Method and apparatus for determining a fraction of an adsorbed material contained in an adsorber material

#86
20120217987
2012-08-30

Non-destructive determination of the moisture content in an electronic circuit board using comparison of capacitance measurements acquired from test coupons, and design structure/process therefor

#87
20120000285
2012-01-05

Capacitive type humidity sensor and manufacturing method thereof

#88
20110179861
2011-07-28

Capacitive humidity detector with nanoporous hydrophilic dielectric

#89
20110005313
2011-01-13

HUMIDITY SENSOR

#90
20100307238
2010-12-09

HUMIDITY SENSOR AND METHOD OF MANUFACTURING THE SAME

#91
20090237090
2009-09-24

Method and system for adjusting characteristics of integrated relative humidity sensor

#92
20090134026
2009-05-28

Gas sensor and method for the production thereof

#93
20080314809
2008-12-25

FILTER MONITOR

#94
20080257037
2008-10-23

Humidity sensor

#95
20080061802
2008-03-13

Method and apparatus for controlling the sensitivity and value of a capacitive humidity sensor

#96
20070210807
2007-09-13

Capacitive humidity sensor

#97
20070210008
2007-09-13

FILTER MONITOR

#98
20070157512
2007-07-12

Electronic measuring or control device used for watering plants

#99
20070126433
2007-06-07

Permeable Moisture Sensor for Concrete, and Other Moisture Sensors, Moisture Sensing Methods and Construction Methods

#100
20060260107
2006-11-23

Manufacturing method of humidity sensor

#101
20060238290
2006-10-26

Capacitive humidity sensor and method for manufacturing the same

#102
20060055503
2006-03-16

Capacitive humidity sensor

#103
20050130210
2005-06-16

Flow cell humidity sensor system

#104
13784091
2015-06-23

Moisture sensing devices