ClassID:

159555

F25B2700/13 - CPC Classification

Classification description:

Sensing or detecting of parameters; Sensors therefor Mass flow of refrigerants

Sub-classes:
Recent Application in this class:
#1
20250244064
2025-07-31

AIR CYCLE MACHINE FAILURE ALERT SYSTEM

#2
20250237419
2025-07-24

METHOD AND SYSTEM TO PREVENT FROST ACCUMULATION IN AN HVAC SYSTEM

#3
20250146719
2025-05-08

REFRIGERANT FLOW RATE ADJUSTMENT DEVICE AND SYSTEM USING THE SAME

#4
20250129978
2025-04-24

SYSTEM AND METHOD FOR MAP-INTERPOLATION BASED CONTROL OF EJECTORS IN AN EJECTOR REFRIGERATION CIRCUIT

#5
20250123039
2025-04-17

AIR CYCLE MACHINE FAILURE ALERT SYSTEM

#6
20250116441
2025-04-10

SMART ACCUMULATOR WITH OIL CIRCULATION RATIO SENSING

#7
20240418416
2024-12-19

CONTROL OF REFRIGERATION AND HEAT PUMP SYSTEMS THAT INCLUDE PRESSURE EXCHANGERS

#8
20240393017
2024-11-28

REFRIGERATION AND HEAT PUMP SYSTEMS WITH PRESSURE EXCHANGERS

#9
20240302087
2024-09-12

AIR CYCLE MACHINE FAILURE ALERT SYSTEM

#10
20240288183
2024-08-29

LOW CHARGE PACKAGED AMMONIA REFRIGERATION SYSTEM WITH EVAPORATIVE CONDENSER

#11
20240263846
2024-08-08

HEAT PUMP SYSTEMS WITH PRESSURE EXCHANGERS

#12
20240219089
2024-07-04

REFRIGERATION SYSTEM AND METHOD OF DETERMINING A LOSS OF CHARGE OF REFRIGERANT THEREIN

#13
20240035712
2024-02-01

HEAT PUMP SYSTEMS WITH PRESSURE EXCHANGERS

#14
20230288101
2023-09-14

CONTROL OF REFRIGERATION AND HEAT PUMP SYSTEMS THAT INCLUDE PRESSURE EXCHANGERS

#15
20230228504
2023-07-20

HEAT EXCHANGING SYSTEM AND METHOD FOR DETERMINING IF THE FLOW OF COOLING MEDIUM IS TOO LOW

#16
20230221735
2023-07-13

FLOW RATE CONTROL DEVICE, FLOW RATE CONTROL METHOD, AND CHILLER

#17
20230213245
2023-07-06

Refrigeration and heat pump systems with pressure exchangers

#18
20230168012
2023-06-01

Method for monitoring a refrigerant charge in a vapour compression system

#19
20230126973
2023-04-27

Air conditioner and control method thereof

#20
20230108961
2023-04-06

Low charge packaged ammonia refrigeration system with evaporative condenser

#21
20230089608
2023-03-23

Multi-connection air conditioning system and method for calculating heat exchange amount thereof

#22
20230080672
2023-03-16

REFRIGERANT LEAK MITIGATION SYSTEM

#23
20220397324
2022-12-15

Control of refrigeration and heat pump systems that include pressure exchangers

#24
20220397317
2022-12-15

Refrigeration and heat pump systems with pressure exchangers

#25
20220397310
2022-12-15

Heat pump systems with pressure exchangers

#26
20220390156
2022-12-08

Smart accumulator with oil circulation ratio sensing

#27
20220290905
2022-09-15

Superheating control for heating, ventilation, air conditioning and refrigeration (HVACR) system including a dynamic receiver

#28
20220279684
2022-09-01

COOLING SYSTEM, SURGE GENERATION PREVENTION DEVICE, SURGE GENERATION PREVENTION METHOD, AND SURGE GENERATION PREVENTION PROGRAM

#29
20220120483
2022-04-21

Low refrigerant charge detection in transport refrigeration system

#30
20210364210
2021-11-25

Systems and methods for pressure control in a CO2 refrigeration system

#31
20210199317
2021-07-01

Water cooled dehumidification system

#32
20210190336
2021-06-24

Split dehumidification system with secondary evaporator and condenser coils

#33
20210140662
2021-05-13

HVAC system and method of circulating flammable refrigerant

#34
20210123646
2021-04-29

Gas-liquid separator and air conditioner having the same

#35
20210055025
2021-02-25

Air-conditioner that prevents degradation in heating capability during defrosting operation

#36
20200348064
2020-11-05

Air-conditioning system and air-conditioning control method

#37
20200300522
2020-09-24

Refrigerant-amount determination kit

#38
20200124305
2020-04-23

HVAC system and method of circulating flammable refrigerant

#39
20190310002
2019-10-10

Condensation suppressing method and processing apparatus

#40
20190301780
2019-10-03

Method for handling fault mitigation in a vapour compression system

#41
20190178520
2019-06-13

Predictive HVAC system controlling apparatus and method

#42
20190078823
2019-03-14

Air conditioner with multiple expansion devices

#43
20180233900
2018-08-16

Compressor protection and grid fault detection device

#44
20180163998
2018-06-14

Low charge packaged ammonia refrigeration system with evaporative condenser

#45
20180156511
2018-06-07

Temperature-adjusting fluid supply apparatus

#46
20180094841
2018-04-05

Parallel capillary expansion tube systems and methods

#47
20180094840
2018-04-05

Parallel capillary expansion tube systems and methods

#48
20180080692
2018-03-22

Refrigeration apparatus having leakage or charge deficiency determining feature

#49
20180045446
2018-02-15

Method and Apparatus Taking into Account the Influence of Oil in an Air-Conditioning/Refrigeration Circuit

#50
20180031292
2018-02-01

Condenser Pressure Control System and Method

#51
20180023870
2018-01-25

Air conditioning device

#52
20170054287
2017-02-23

Compressor protection and grid fault detection device

#53
20160320114
2016-11-03

FLOW RATE MEASURING DEVICE AND VARIABLE DISPLACEMENT COMPRESSOR

#54
20160238299
2016-08-18

Chiller system and control method thereof

#55
20160195322
2016-07-07

Air-conditioner system for vehicle and method for controlling same

#56
20160102901
2016-04-14

Systems and methods for pressure control in a COrefrigeration system

#57
20150292762
2015-10-15

HVAC systems and controls

#58
20150168041
2015-06-18

Air conditioner with multiple expansion devices

#59
20140216068
2014-08-07

Chiller system and control method thereof

#60
20140157808
2014-06-12

Refrigeration system controlled by refrigerant quality within evaporator

#61
20130269374
2013-10-17

Method and device for controlling an aircraft air conditioning system

#62
20130139530
2013-06-06

Method of operating a cooling system having one or more cooling units

#63
20120280709
2012-11-08

Compressor protection and grid fault detection device

#64
20120204583
2012-08-16

Receiver with flow metering device

#65
20120067077
2012-03-22

Torque estimating device for compressor

#66
20120039006
2012-02-16

Compressor protection and grid fault detection device

#67
20110315368
2011-12-29

Air-conditioning apparatus with a control unit operating as an evaporator

#68
20110197608
2011-08-18

Air conditioning apparatus having indoor, outdoor, and relay units

#69
20110114284
2011-05-19

OPTIMIZING THE EFFICIENCY AND ENERGY USAGE OF A GEOTHERMAL MULTIPLE HEAT PUMP SYSTEM

#70
20100139294
2010-06-10

Cooling System Having A Bypass Valve To Regulate Fluid Flow

#71
20100057263
2010-03-04

Method and apparatus for cooling

#72
20090318913
2009-12-24

REFRIGERATION SOURCE FOR A CRYOABLATION CATHETER

#73
20090235675
2009-09-24

Method for determining if refrigerant charge is sufficient and charging refrigerant

#74
20090225479
2009-09-10

Compressor protection and grid fault detection device

#75
20090056353
2009-03-05

REFRIGERATION SYSTEM INCLUDING A FLEXIBLE SENSOR

#76
20090000319
2009-01-01

Refrigeration cycle device for vehicle

#77
20080295532
2008-12-04

Compressor inlet pressure estimation apparatus for refrigeration cycle system

#78
20080289348
2008-11-27

Refrigeration cycle system

#79
20080245083
2008-10-09

Method and apparatus for cooling

#80
20080110188
2008-05-15

Structure for sensing refrigerant flow rate in a compressor

#81
20080104984
2008-05-08

Structure for sensing refrigerant flow rate in a compressor

#82
20080041080
2008-02-21

Structure for sensing refrigerant flow rate in a compressor

#83
20070277550
2007-12-06

Refrigeration source for a cryoablation catheter

#84
20070095085
2007-05-03

Air-Conditioning Assembly

#85
20070023534
2007-02-01

Water-source heat pump control system and method

#86
20060288720
2006-12-28

Method and apparatus for air conditioning using a primary and an ancillary power source

#87
20060144059
2006-07-06

Method and control for determining low refrigerant charge

#88
20050159735
2005-07-21

Refrigeration source for a cryoablation catheter

#89
20050155359
2005-07-21

Performance testing apparatus of refrigerating cycle

#90
20050086954
2005-04-28

Air conditioner having multiple outdoor units, and control method thereof

#91
20050066676
2005-03-31

Air conditioner

#92
20050034469
2005-02-17

Air conditioning apparatus using variable displacement compressor