ClassID:

159410

F25B2345/003 - CPC Classification

Classification description:

Details for charging or discharging refrigerants; Service stations therefor Control issues for charging or collecting refrigerant to or from a cycle

Recent Application in this class:
#1
20260126227
2026-05-07

AIR CONDITIONER OUTDOOR UNIT, REFRIGERANT CHARGING METHOD, DEVICE, AND STORAGE MEDIUM

#2
20260016204
2026-01-15

METHOD AND APPARATUS FOR EXTRACTING A REFRIGERANT AND STATE UNIT

#3
20250389467
2025-12-25

Method for Charging Refrigerant into Heat Transferring Apparatus and Refrigerant-Charging Control Apparatus for Heat Transferring Apparatus

#4
20250369668
2025-12-04

DEVICE, SYSTEM, AND METHOD FOR DETERMINING CHARGE SETTINGS FOR A REFRIGERATION CIRCUIT

#5
20250362066
2025-11-27

CHILLER PURGE SYSTEMS AND METHODS

#6
20250354733
2025-11-20

Dispenser and System for Dispensing from a Canister

#7
20250327606
2025-10-23

SUPPORT SYSTEM AND SUPPORT METHOD

#8
20250180262
2025-06-05

INTELLIGENT CHARGE COMPENSATION IN A HEAT PUMP SYSTEM

#9
20250129980
2025-04-24

METHOD TO CHARGE MULTIPLE REFRIGERANTS WITH DESIRED CONCENTRATIONS

#10
20250091409
2025-03-20

AUTOFILL OVERFILL PROTECTION TEMPERATURE SENSING AIR CONDITIONING COOLANT RECHARGE

#11
20250075954
2025-03-06

AUTOMATIC REFRIGERANT CHARGING SYSTEM AND METHOD FOR AIR CONDITIONERS

#12
20250012460
2025-01-09

HEAT MODULATION DEHUMIDIFICATION SYSTEM

#13
20240384905
2024-11-21

SERVICE TOOLS AND SYSTEMS FOR PROCESSING FLUID THROUGH A FLUID ACCESS PORT

#14
20240200840
2024-06-20

HEAT SOURCE UNIT AND REFRIGERANT HANDLING METHOD

#15
20240191922
2024-06-13

Intelligent charge compensation in a heat pump system

#16
20240191917
2024-06-13

HEAT PUMP CHARGE COMPENSATION FOR COOLING MODE OPERATION

#17
20240183592
2024-06-06

CONNECTING AND DISCONNECTING A COOLING LOOP FROM A REFRIGERATION SYSTEM

#18
20240175612
2024-05-30

THERMAL MANAGEMENT SYSTEM AND CONTROL METHOD FOR THERMAL MANAGEMENT SYSTEM

#19
20240110086
2024-04-04

Refrigerants, Heat Transfer Compositions and Heat Transfer Systems and Methods

#20
20240035723
2024-02-01

Method for recharging a refrigerated appliance by weighing and dispensing small amounts of hydrocarbon refrigerant gases

#21
20240003604
2024-01-04

HVAC UNIT PRESSURE, VACUUM AND CHARGING APPARATUS AND METHOD

#22
20230417463
2023-12-28

APPARATUS FOR CONNECTION TO AN HVAC-R SYSTEM DURING MAINTENANCE OR COMMISSIONING AND METHODS OF MAINTENANCE OR COMMISSIONING FOR AN HVAC-R SYSTEM

#23
20230364970
2023-11-16

Autofill overfill protection temperature sensing air conditioning coolant recharge

#24
20230332813
2023-10-19

AUTOMATIC REFRIGERANT FILLING

#25
20230204235
2023-06-29

Heat modulation dehumidification system

#26
20230184473
2023-06-15

System and method for detecting refrigerant leakage and charging a climate-control system with refrigerant

#27
20230074872
2023-03-09

Systems and methods for charging refrigerant into a climate control system

#28
20220404079
2022-12-22

Leak mitigation system

#29
20220390159
2022-12-08

Air-conditioning management system and refrigerant recovery management apparatus

#30
20220390158
2022-12-08

REFRIGERANT RECOVERY CONTROL DEVICE AND REFRIGERANT RECOVERY CONTROL SYSTEM

#31
20220381495
2022-12-01

Dynamic liquid receiver and control strategy

#32
20220381493
2022-12-01

Refrigeration system with transfer system

#33
20220341640
2022-10-27

Method for replacing refrigerant in refrigeration apparatus, refrigerating machine oil, and container

#34
20220235986
2022-07-28

Heating, ventilation, air conditioning, and refrigeration protection system

#35
20220228597
2022-07-21

VACUUM PUMP FOR USE DURING MAINTENANCE OR COMMISSIONING OF AN HVAC-R SYSTEM, ADAPTER FOR A VACUUM PUMP, AND A METHOD OF PERFORMING A VACUUM TEST ON AN HVAC-R SYSTEM

#36
20220170677
2022-06-02

APPARATUS FOR CONNECTION TO AN HVAC-R SYSTEM DURING MAINTENANCE OR COMMISSIONING AND METHODS OF MAINTENANCE OR COMMISSIONING FOR AN HVAC-R SYSTEM

#37
20220146170
2022-05-12

HVAC system prognostics and diagnostics based on temperature rise or drop

#38
20220074635
2022-03-10

Additional-filling-amount management system

#39
20220049883
2022-02-17

Systems and methods for leak detection and refrigerant charging

#40
20220003470
2022-01-06

Refrigerant charging method

#41
20220003469
2022-01-06

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

#42
20210404719
2021-12-30

Dynamic liquid receiver and control strategy

#43
20210381735
2021-12-09

Method and system for charge determination

#44
20210356184
2021-11-18

Purge system for chiller system

#45
20210348816
2021-11-11

Refrigerant charging method

#46
20210333028
2021-10-28

REFRIGERANT CHARGING SYSTEM AND METHOD FOR VARIABLE SPEED COMPRESSOR BASED AC SYSTEM

#47
20210270507
2021-09-02

Air conditioner and fluid filling method for an air conditioner

#48
20210270506
2021-09-02

Systems and methods for charging refrigerant into a climate control system

#49
20210190401
2021-06-24

Refrigeration system

#50
20210190337
2021-06-24

Heat modulation dehumidification system

#51
20210164713
2021-06-03

Portable automatic refrigerant charging device and method

#52
20210095903
2021-04-01

Fluid or Gas Cooling and/or Condensing Apparatus, System and Method

#53
20210088263
2021-03-25

Method and system for charge determination

#54
20210041152
2021-02-11

CHILLER REFRIGERATION CIRCUIT RECHARGING APPARATUS AND METHOD

#55
20210003332
2021-01-07

Refrigerant charge device and refrigerant charge system having the same

#56
20200370806
2020-11-26

Detection that a refrigerant is at a fully charged level

#57
20200200456
2020-06-25

Refrigeration system with transfer system

#58
20200191455
2020-06-18

Integral service refrigerant pump

#59
20200158382
2020-05-21

Heat pump cycle device and valve device

#60
20200109885
2020-04-09

Method and device for providing zeotropic refrigerants

#61
20200033036
2020-01-30

Refrigerant-amount determining method and refrigerant-amount determining device

#62
20190368795
2019-12-05

Apparatus and methodology for opening refrigerant sources while servicing automotive refrigeration systems

#63
20190316821
2019-10-17

DETECTION APPARATUS AND METHOD FOR REFRIGERANT LEAKAGE OF AIR SOURCE COOLING ONLY SYSTEM

#64
20190212043
2019-07-11

Refrigeration system and method for automated charging and start-up control

#65
20190113262
2019-04-18

Purge system for chiller system

#66
20190063804
2019-02-28

Tank temperature probe with positional sensor

#67
20190032977
2019-01-31

Refrigerant charging assemblies and methods of use

#68
20190011157
2019-01-10

Air conditioning apparatus

#69
20180363963
2018-12-20

System and method for checking and calibrating scale for measuring fluid in refrigerant recovery system

#70
20180238599
2018-08-23

Refrigerant charge detection for ice machines

#71
20180216860
2018-08-02

Refrigerant recovery pump with an improved input port

#72
20180195779
2018-07-12

Subsystem for a vapour-compression system, a vapour-compression system, and a method for a vapour-compression system

#73
20180164008
2018-06-14

Method for loading refrigerant in an air conditioning system

#74
20180142928
2018-05-24

Air conditoner and method for controlling an air conditioner

#75
20180073789
2018-03-15

Refrigeration system with superheating, sub-cooling and refrigerant charge level control

#76
20180045445
2018-02-15

System for refrigerant charge verification

#77
20180010833
2018-01-11

Accumulator for charge management

#78
20180010832
2018-01-11

Digital monitoring and measuring air conditioner recharging system

#79
20170336113
2017-11-23

Refrigeration system and method for automated charging and start-up control

#80
20170336112
2017-11-23

Apparatus and method for indicating status of multi-phase vacuum-assisted recovery of refrigerant

#81
20170336111
2017-11-23

Apparatus and method for a multi-phase vacuum-assisted recovery of refrigerant

#82
20170284695
2017-10-05

Variable refrigerant volume system and control method thereof

#83
20170227270
2017-08-10

Device for filling vehicle air conditioning systems with refrigerant R744

#84
20170219262
2017-08-03

Method of and system for detecting loss of refrigerant charge

#85
20170198953
2017-07-13

Refrigeration system with superheating, sub-cooling and refrigerant charge level control

#86
20170191719
2017-07-06

REFRIGERANT MANAGEMENT SYSTEM WITH OPERATIONAL EFFICIENCY IMPROVEMENT DEVICES

#87
20170115042
2017-04-27

Method for checking the presence of incondensable gases in climate recovery and charging station

#88
20170045278
2017-02-16

Active refrigerant charge compensation for refrigeration and air conditioning systems

#89
20170045277
2017-02-16

System and method for injecting oil into an air conditioning circuit

#90
20170030617
2017-02-02

Method for transferring coolant from a loading unit to an air conditioning system

#91
20170002802
2017-01-05

Helium management control system

#92
20160223234
2016-08-04

Charge control system for trans-critical vapor cycle systems

#93
20160216017
2016-07-28

System and method for detecting low refrigerant charge in a refrigeration system

#94
20160209056
2016-07-21

Charge management for air conditioning

#95
20160187042
2016-06-30

System and method for recovering refrigerant

#96
20160169568
2016-06-16

Refrigerant level monitor for refrigeration system

#97
20160138843
2016-05-19

System and method for charging refrigerant into a refrigeration circuit

#98
20160123642
2016-05-05

System and method for venting refrigerant from an air conditioning system

#99
20160123641
2016-05-05

System and method for venting refrigerant from an air conditioning system

#100
20160047584
2016-02-18

Refrigerant charge detection for ice machines

#101
20150316301
2015-11-05

METHOD AND SYSTEM FOR CHARGING A TRANSPORT REFRIGERATION SYSTEM

#102
20150267951
2015-09-24

VARIABLE REFRIGERANT CHARGE CONTROL

#103
20150267950
2015-09-24

System and method for recovering refrigerant

#104
20150233623
2015-08-20

Method for controlling an expansion device of a vapor compression system during start-up using rates of change of an evaporator inlet and outlet temperature

#105
20150184911
2015-07-02

Apparatus and methodology for opening refrigerant sources while servicing automotive refrigeration systems

#106
20150153083
2015-06-04

Method and apparatus for recovering refrigerant from an air conditioning system

#107
20150153082
2015-06-04

Heat exchanger for a refrigerant service system

#108
20150121936
2015-05-07

APPARATUS AND METHOD OF BACKFLOW PREVENTION

#109
20150052937
2015-02-26

Charge management for air conditioning

#110
20150040596
2015-02-12

Helium management control system

#111
20150007591
2015-01-08

Method for detection of loss of refrigerant

#112
20140311172
2014-10-23

Outdoor unit and air-conditioning apparatus

#113
20140260353
2014-09-18

Modified hose flush device and method

#114
20140260351
2014-09-18

Method and apparatus for improving the charge accuracy of a refrigerant recovery unit

#115
20140216076
2014-08-07

Refrigerant charging method for air-conditioning apparatus and air-conditioning apparatus

#116
20140216073
2014-08-07

Method of charging a coolant

#117
20140182312
2014-07-03

Method and system for a portable refrigerant recovery unit load controller

#118
20140174114
2014-06-26

Refrigerant charge assisting device, air-conditioning apparatus, and refrigerant charge assisting program

#119
20140144170
2014-05-29

Charging device for cooling system

#120
20130319025
2013-12-05

Refrigerant recovery unit with diagnostic interface

#121
20130298995
2013-11-14

Methods and systems for reducing refrigerant loss during air purge

#122
20130298582
2013-11-14

Refrigerant system and a control method the same

#123
20130298578
2013-11-14

Refrigerant conversion kit and method for a refrigerant recovery unit

#124
20130232999
2013-09-12

Cryopump system, and method of operating the same, and compressor unit

#125
20130205806
2013-08-15

Method and apparatus for improving accuracy of A/C diagnostic tests

#126
20130118187
2013-05-16

Refrigerant charging assemblies and methods of use

#127
20130047636
2013-02-28

Method and system for filling a refrigerant into a refrigeration system

#128
20130047635
2013-02-28

STARTING METHOD FOR A REFRIGERANT RECOVERY, RECYCLING AND RECHARGING SYSTEM

#129
20130019620
2013-01-24

Helium management control system

#130
20120324922
2012-12-27

System and method for accurately recharging an air conditioning system

#131
20120265352
2012-10-18

Refrigerant recycling system

#132
20120255711
2012-10-11

Thermal accumulator and method of use

#133
20120180506
2012-07-19

Refrigeration and air-conditioning apparatus

#134
20120031116
2012-02-09

System and method for accurately recharging an air conditioning system

#135
20110160918
2011-06-30

A/C service tool controller

#136
20110146304
2011-06-23

Internal clearing function for a refrigerant recovery/recharge machine

#137
20110132018
2011-06-09

ELECTRONIC INSTRUMENT FOR REFRIGERANT RECOVERY MACHINE

#138
20100313583
2010-12-16

Helium management control system

#139
20100198415
2010-08-05

Air-conditioning apparatus

#140
20100101246
2010-04-29

System and Method For Controlling Working Fluid Charge In A Vapor Compression Air Conditioning System

#141
20080011003
2008-01-17

System and method for controlling working fluid charge in a vapor compression air conditioning system

#142
20070107448
2007-05-17

Helium management control system

#143
20060277935
2006-12-14

Automated hose clearing after refrigerant charging method

#144
20060137376
2006-06-29

Cooling device for MR apparatus

#145
20060137366
2006-06-29

Automatic refrigerant charging apparatus

#146
20060130511
2006-06-22

Internal clearing function for a refrigerant recovery/recharge machine

#147
20060130510
2006-06-22

Modular recovery apparatus and method

#148
20060118362
2006-06-08

Automated hose clearing after refrigerant charging method and apparatus

#149
20060086123
2006-04-27

Pressure testing and refrigerant recharging conduit assembly for automobiles

#150
20060086122
2006-04-27

Pressure testing and refrigerant recharging hose assembly for automobiles

#151
20060010888
2006-01-19

Refrigerant charging system and method with cartridges

#152
20050109050
2005-05-26

Refrigerant charge level determination

#153
14795401
2018-01-30

Web-based, plug and play wireless remote monitoring diagnostic and system health prediction system

#154
14795347
2016-08-23

Cost-effective remote monitoring, diagnostic and system health prediction system and method for vapor compression and heat pump units based on compressor discharge line temperature sampling

#155
14795321
2016-08-16

Cost-effective remote monitoring, diagnostic and system health prediction system and method for vapor compression and heat pump units based on compressor discharge line temperature sampling

#156
13226520
2015-10-27

Cost-effective remote monitoring, diagnostic and system health prediction system and method for vapor compression and heat pump units based on compressor discharge line temperature sampling