ClassID:

159493

F25B2500/221 - CPC Classification

Classification description:

Problems to be solved; Preventing, detecting or repairing leaks of refrigeration fluids Preventing leaks from developing

Recent Application in this class:
#1
20260085864
2026-03-26

REFRIGERANT EVACUATION AND CHARGE ADJUSTMENT MECHANISM

#2
20260071786
2026-03-12

COOLING SYSTEM

#3
20260055939
2026-02-26

SENSOR-INTEGRATED EXPANSION VALVE

#4
20250377142
2025-12-11

REFRIGERANT MANIFOLD

#5
20250172307
2025-05-29

AIR CONDITIONING SYSTEM AND METHOD OF ESTABLISHING A CONTROL LOGIC FOR SHUTOFF VALVE ACTUATION

#6
20250155902
2025-05-15

GAS SENSING LEAK MITIGATION UNIT

#7
20240183592
2024-06-06

CONNECTING AND DISCONNECTING A COOLING LOOP FROM A REFRIGERATION SYSTEM

#8
20240053075
2024-02-15

Refrigeration cycle system and refrigerant recovery apparatus

#9
20230122190
2023-04-20

FLANGE-MOUNTED INLINE VALVE WITH INTEGRATED ELECTRICAL FEED

#10
20230042899
2023-02-09

Heat pump system and method for operating a heat pump system of this type

#11
20220381493
2022-12-01

Refrigeration system with transfer system

#12
20220349510
2022-11-03

Universal caps for the low and high side refrigerant service ports of an air conditioning system

#13
20220307740
2022-09-29

System and method for mitigating risk from a leaked refrigerant at evaporator coils

#14
20220196304
2022-06-23

Refrigerant system operation sequences for leak prevention

#15
20220178485
2022-06-09

Closure plug for a collector of a refrigerant circuit

#16
20220003470
2022-01-06

Refrigerant charging method

#17
20220003469
2022-01-06

Refrigerant charging method, heat source unit, and renewed refrigeration cycle apparatus

#18
20210348816
2021-11-11

Refrigerant charging method

#19
20210108839
2021-04-15

Environmental air conditioning and refrigeration isolation safety valve

#20
20210010731
2021-01-14

Integrated sensor and service port with anti-blowback feature for HVAC equipment or HVAC system

#21
20210003326
2021-01-07

Refrigerant pipe fitting and refrigerant pipe fitting method using thereof

#22
20200292215
2020-09-17

Condensate removal system for cold-climate heat pumps

#23
20200200456
2020-06-25

Refrigeration system with transfer system

#24
20200080757
2020-03-12

Apparatus using a heat pump including a refrigerant leakage detector

#25
20200064030
2020-02-27

Double acting alpha Stirling refrigerator

#26
20200049384
2020-02-13

Air-conditioning apparatus and air-conditioning system

#27
20200047095
2020-02-13

Filtration system with rotating core driving thimble opening and closing water passage

#28
20200011469
2020-01-09

Device for preventing refrigerant leaks in air conditioning system service ports

#29
20190226730
2019-07-25

Modulator assembly for condenser

#30
20190160908
2019-05-30

Heat exchanger for vehicle

#31
20190010082
2019-01-10

Sealing material

#32
20180299169
2018-10-18

Refrigeration cycle apparatus

#33
20180180338
2018-06-28

Air conditioning system

#34
20180079982
2018-03-22

Refrigerator lubricating oil and mixed composition for refrigerator

#35
20180044608
2018-02-15

Refrigerator lubricating oil and mixed composition for refrigerator

#36
20170097113
2017-04-06

Leakproof Connecting device for a fluid circuit

#37
20160320105
2016-11-03

Heat pump apparatus

#38
20160238140
2016-08-18

Flow path switching valve

#39
20160209085
2016-07-21

Air conditioning system

#40
20150292780
2015-10-15

Refrigeration cycle device

#41
20150219351
2015-08-06

Air-conditioning apparatus

#42
20150184644
2015-07-02

Compressor having a pressurized case

#43
20150008669
2015-01-08

Pipe joint, air conditioner, method for producing connecting pipe, connecting pipe, and connection method

#44
20140165625
2014-06-19

Compositions and methods for injection of sealants and/or drying agents into air conditioning and refrigeration systems

#45
20130180268
2013-07-18

Low refrigerant volume condenser for hydrocarbon refrigerant and ice making machine using same

#46
20130014525
2013-01-17

SWITCHING DEVICE AND AIR-CONDITIONING APPARATUS

#47
20120279239
2012-11-08

Method and device for low-temperature cooling/liquefaction

#48
20120198872
2012-08-09

Air-conditioning apparatus

#49
20120055562
2012-03-08

COMPOSITION AND METHODS FOR INJECTION OF SEALANTS INTO AIR CONDITIONING AND REFRIGERATION SYSTEMS

#50
20110302941
2011-12-15

Air-conditioning apparatus

#51
20110185754
2011-08-04

AIR-CONDITIONING APPARATUS

#52
20110167841
2011-07-14

COMPOSITIONS AND METHODS FOR INJECTION OF SEALANTS AND/OR DRYING AGENTS INTO AIR CONDITIONING AND REFRIGERATION SYSTEMS

#53
20110138886
2011-06-16

Refrigerated Transport System Testing

#54
20110056231
2011-03-10

REFRIGERATION CIRCUIT

#55
20100276622
2010-11-04

Valve device

#56
20100076695
2010-03-25

Sensing and estimating in-leakage air in a subambient cooling system

#57
20080295524
2008-12-04

Pulse tube refrigerating machine

#58
20080060377
2008-03-13

Composition and methods for injection of sealants into air conditioning and refrigeration systems

#59
20080016891
2008-01-24

Refrigerator

#60
20060162427
2006-07-27

Refrigerant leak detector compressor

#61
20060086108
2006-04-27

Refrigerant containment vessel with thermal inertia and method of use

#62
20050268645
2005-12-08

Condenser for an air conditioning system

#63
20050268642
2005-12-08

Composition and methods for injection of sealants into air conditioning and refrigeration systems

#64
20050166604
2005-08-04

Stirling cooler

#65
20050120741
2005-06-09

Expansion valve

#66
20050103031
2005-05-19

Lowering of refrigerant emissions by cycling of a variable displacement compressor

#67
20050039469
2005-02-24

Refrigerator

#68
20050023828
2005-02-03

Pipe joint for refrigeration cycle