ClassID:

166971

G01M3/047 - CPC Classification

Classification description:

Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by using materials which expand, contract, disintegrate, or decompose in contact with a fluid with electrical detection means with photo-electrical detection means, e.g. using optical fibres

Recent Application in this class:
#1
20260133122
2026-05-14

Inverse Backscatter Absorption Gas Imaging

#2
20250198873
2025-06-19

LEAKAGE DETECTION APPARATUS, LEAKAGE DETECTION METHOD, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM

#3
20250044176
2025-02-06

INSPECTION APPARATUS AND METHOD OF OPERATING

#4
20240429462
2024-12-26

OPTICAL LIQUID DETECTION SYSTEM

#5
20240402032
2024-12-05

FIBER OPTICS INTEGRATED WITH NUMERICAL SIMULATORS FOR PIPELINE LEAK QUANTIFICATION

#6
20240003772
2024-01-04

Hydrocarbon leak detection cable

#7
20230393014
2023-12-07

LEAKAGE DETECTION FOR PRESSURIZED FUEL TANKS

#8
20230069606
2023-03-02

AUTONOMOUS FIBER OPTIC SYSTEM FOR DIRECT DETECTION OF CO2 LEAKAGE IN CARBON STORAGE WELLS

#9
20220341729
2022-10-27

Fiber optic sensor network for subsurface impact protection system

#10
20220299396
2022-09-22

Fluid management system and method

#11
20220107273
2022-04-07

Coated fiber optic chemical and radiation sensors

#12
20220107272
2022-04-07

Coated fiber optic chemical and radiation sensors

#13
20210381920
2021-12-09

METHOD OF DETECTING LEAKAGE FROM A PIPELINE

#14
20210356349
2021-11-18

Hydrocarbon leak detection cable

#15
20200292408
2020-09-17

Device for detecting an oil leak

#16
20200217740
2020-07-09

Fluid management system and method

#17
20200191680
2020-06-18

Overheat detection systems for aircraft

#18
20200124492
2020-04-23

Test method of a semiconductor device and manufacturing method of a semiconductor device

#19
20190331549
2019-10-31

In-pipeline optical interference-based cognitive system for leak and defect detection

#20
20190293516
2019-09-26

Optical sensor and analyzer using the same

#21
20190195720
2019-06-27

Water engineering seepage behavior fusing and sensing system and method

#22
20190154536
2019-05-23

Quantifying gas leak rates using frame images acquired by a camera

#23
20190056377
2019-02-21

Composite material with failure detection properties

#24
20180372577
2018-12-27

Device for detecting a leak in a sealed enclosure

#25
20170276894
2017-09-28

Smart subsea pipeline with conduits

#26
20170059441
2017-03-02

System and method for detection of hydrocarbon leakage from an underwater pipeline in a body of water and hydrocarbon extraction unit

#27
20170045410
2017-02-16

Fibre optic distributed sensing

#28
20160305235
2016-10-20

Apparatus for detecting acoustic signals in a housing

#29
20160169767
2016-06-16

Leak detection system

#30
20160109316
2016-04-21

Pressure detecting apparatus made by 3D printing technologies being able to be used in dangerous areas

#31
20150338343
2015-11-26

Silicon oil sensor and electric power terminal assembly

#32
20150300874
2015-10-22

Pipeline integrity monitoring using fiber optics

#33
20150131228
2015-05-14

Heat exchange device, electronic system, and cooling method of electronic system

#34
20150090005
2015-04-02

Leak detection in composite structures

#35
20150068286
2015-03-12

Leak detection system

#36
20150041000
2015-02-12

System to monitor performance of packing material in a seal

#37
20150028209
2015-01-29

Refrigerant Gas Leak Detector

#38
20140366975
2014-12-18

Pipe and conduit wear detection system

#39
20140102190
2014-04-17

Fiber Bragg grating systems and methods for moisture detection

#40
20130220466
2013-08-29

Leak detector

#41
20130111976
2013-05-09

Low cost humidity and mold indicator for buildings

#42
20120281944
2012-11-08

Fiber-optic sensor for liquid-immersion detection and fiber-optic detection system for liquid-immersion detection

#43
20120167669
2012-07-05

Leak detection system

#44
20120137781
2012-06-07

Fibre optic acoustic sensing

#45
20120042714
2012-02-23

Hermeticity sensor and related method

#46
20110292384
2011-12-01

System and method for detection of flexible pipe armor wire ruptures

#47
20110194102
2011-08-11

Fiber optic building monitoring system

#48
20110154884
2011-06-30

Pipe system, a gas sensing system for a pipe system, and a method of determining a gas component in a cavity of a pipe

#49
20110149688
2011-06-23

Conduit monitoring

#50
20110139538
2011-06-16

Tracking objects in conduits

#51
20110042557
2011-02-24

Optical fiber based sensor system suitable for monitoring remote aqueous infiltration

#52
20110032518
2011-02-10

DETECTION ASSEMBLY

#53
20110017337
2011-01-27

Flexible tube for transporting cryogenic fluid and structure for detecting leakage of fluid in tube

#54
20110005303
2011-01-13

Fluid conveying tube and fluid leakage detecting system

#55
20100315630
2010-12-16

Method and system for estimating fluid leak flow rates using distributed optical fiber sensors

#56
20100269941
2010-10-28

Pipeline leakage-sensing device

#57
20100175460
2010-07-15

Device, system, and method for detecting and locating malfunctions in a hydraulic structure, and a hydraulic structure with said device

#58
20100141281
2010-06-10

WATER DETECTOR

#59
20100079759
2010-04-01

Watertight connection system for combined electrical and fiber optic cables

#60
20100064779
2010-03-18

Method of checking the hermeticity of a closed cavity of a micrometric component and micrometric component for the implementation of the same

#61
20100064773
2010-03-18

Fluid detection with a spectrometer-on-a-chip

#62
20100024525
2010-02-04

Method of checking the hermeticity of a closed cavity of a micrometric component and micrometric component for the implementation of the same

#63
20100005860
2010-01-14

Device for conveying a substance provided with an optical leak detector

#64
20100002983
2010-01-07

DISTRIBUTED OPTICAL FIBER DETECTION SYSTEM

#65
20090314204
2009-12-24

LEAKAGE DETECTION DEVICE FOR COATING MATERIAL AND COATING MATERIAL FILING SYSTEM

#66
20090220190
2009-09-03

Leak detector using an optical fibre

#67
20080210024
2008-09-04

Remote pipe inspection using a mounted camera and sensor

#68
20080134761
2008-06-12

Oil Entrapment and Containment Channel for Above Ground Pipelines

#69
20080121021
2008-05-29

Process and apparatus for inspection of an aircraft jet engine for oil leaks

#70
20080110244
2008-05-15

Pipeline configuration for the transport of a liquid, especially petroleum

#71
20080061265
2008-03-13

1,1,1,2,2,4,5,5,5-nonafluoro-4-(trifluoromethyl)-3-pentanone compositions comprising a hydrofluorocarbon and uses thereof

#72
20080013879
2008-01-17

Optical fiber based sensor system suitable for monitoring remote aqueous infiltration

#73
20080011057
2008-01-17

Leak detection sensor system and method for double carcass hose

#74
20080011056
2008-01-17

Flexible leak detection system and method for double carcass hose

#75
20070247631
2007-10-25

Fibre optic sensor method and apparatus

#76
20070196923
2007-08-23

Method of checking the hermeticity of a closed cavity of a micrometric component and micrometric component for the implementation of same

#77
20070131297
2007-06-14

Leak detection system and method for offshore hose lines

#78
20070098323
2007-05-03

Reflection-mode fiber sensing devices

#79
20070081773
2007-04-12

Telecommunication optical cable for gas pipeline applications having built-in leakage detecting device

#80
20070065071
2007-03-22

Humidity sensor and method for monitoring moisture in concrete

#81
20060208216
2006-09-21

1,1,1,2,2,4,5,5,5-nonafluoro-4-(trifluoromethyl)-3-pentanone compositions comprising a hydrofluorocarbon and uses thereof

#82
20050283276
2005-12-22

Real time subsea monitoring and control system for pipelines

#83
20050271474
2005-12-08

Sensor system for buried waste containment sites

#84
20050263737
2005-12-01

1,1,1,2,2,4,5,5,5-nonafluoro-4-(trifluoromethyl)-3-pentanone compositions comprising a hydrofluorocarbon and uses thereof

#85
20050210961
2005-09-29

Method and device for monitoring a flexible pipe

#86
14207757
2015-07-07

System and method for dynamic aeroelastic control