ClassID:

167015

G01M3/228 - CPC Classification

Classification description:

Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for containers, e.g. radiators for radiators

Recent Application in this class:
#1
20250231076
2025-07-17

Gas leak detector

#2
20220244129
2022-08-04

LEAKAGE DETECTION APPARATUS AND LEAKAGE DETECTION METHOD

#3
20200182734
2020-06-11

GAS LEAK AMOUNT DETECTION METHOD AND METHOD FOR OPERATING REFRIGERATION APPARATUS

#4
20200096414
2020-03-26

Liquid leakage sensing device using electrolysis

#5
20200049362
2020-02-13

Leak detection unit for refrigerant system

#6
20160377502
2016-12-29

System for detecting coolant leaks in generators

#7
20160178229
2016-06-23

Leak detection unit for refrigerant system

#8
20150292975
2015-10-15

Method for detecting coolant leaks in generators

#9
20140362226
2014-12-11

Detecting coolant leaks in turbine generators

#10
20120312079
2012-12-13

METHOD OF SENSING ABNORMAL CONDITION IN HEAT EXCHANGE PROCESS AND HEAT EXCHANGE APPARATUS

#11
20120291985
2012-11-22

METHOD OF SENSING ABNORMAL CONDITION IN HEAT EXCHANGE PROCESS AND HEAT EXCHANGE APPARATUS

#12
20120090383
2012-04-19

SYSTEM AND METHOD FOR DETECTING A REFRIGERANT LEAK AND CHEMICALS PRODUCED AS A RESULT OF HEATING OF THE REFRIGERANT

#13
20110138886
2011-06-16

Refrigerated Transport System Testing

#14
20110083492
2011-04-14

Leakage Detection Device

#15
20110000284
2011-01-06

Heat exchanger leak testing method and apparatus

#16
20100273118
2010-10-28

HEAT TRANSFER TUBE MONITORING APPARATUS

#17
20100271221
2010-10-28

Detection of COleakage in a container

#18
20100251803
2010-10-07

DETECTABLE REFRIGERANT COMPOSITIONS AND USES THEREOF

#19
20100059124
2010-03-11

Gas leak detecting system for gas cooler

#20
20100018292
2010-01-28

METHOD FOR LEAKAGE MONITORING IN A TUBE BUNDLE REACTOR

#21
20090314013
2009-12-24

METHOD FOR SERVICING AIR-CONDITIONING SYSTEMS, AND CONTAINER FOR CARRYING IT OUT

#22
20090229295
2009-09-17

LEAKAGE TEST IN AN AIR CONDITIONER

#23
20090189077
2009-07-30

Detectable refrigerant compositions and uses thereof

#24
20090145589
2009-06-11

Isothermal reactor

#25
20090145200
2009-06-11

Heat exchanger leak testing method and apparatus

#26
20080282775
2008-11-20

Chamber sealing valve

#27
20080069177
2008-03-20

Method of detecting leaks of fluoroolefin compositions and sensors used therefor

#28
20080001119
2008-01-03

Composition and method for scale removal and leak detection

#29
20070277593
2007-12-06

High performance generator stator leak monitoring system

#30
20070193285
2007-08-23

Testing for Leaks in a Two-Phase Liquid Cooling System

#31
20070125156
2007-06-07

Detection of leaks in heat exchangers

#32
20070002539
2007-01-04

Chamber sealing valve

#33
20060016249
2006-01-26

Heat recovery test apparatus and method for making and testing the same

#34
20050235737
2005-10-27

Method of detecting leakage in a heat exchanger

#35
20050211949
2005-09-29

Detectable refrigerant compositions and uses thereof

#36
20050199902
2005-09-15

Detection lamp equipped with light-emitting diode

#37
20050109083
2005-05-26

Detection of leaks in heat exchangers

#38
20050042757
2005-02-24

Method of detecting a leakage in an apparatus