ClassID:

235021

Y02B30/18 - CPC Classification

Classification description:

Energy efficient heating, ventilation or air conditioning [HVAC] Domestic hot-water supply systems using recuperated or waste heat

Recent Application in this class:
#1
20230077344
2023-03-16

Energy recovery system for heated water

#2
20210055004
2021-02-25

FUEL-FIRED APPLIANCE WITH THERMOELECTRIC-POWERED ELECTRIC HEATING DEVICE

#3
20200386418
2020-12-10

Hot water supplying apparatus and method for utilizing waste heat of hot water supplying apparatus

#4
20200340663
2020-10-29

Feed water supplementary thermal exchange apparatus, system and method

#5
20200309384
2020-10-01

Method and apparatus for reduction of water re-evaporation in a dedicated dehumidifier/water heater

#6
20190145633
2019-05-16

Hot water unit fluid supply control systems and methods

#7
20190137113
2019-05-09

Solar hot water and recovery system

#8
20180187928
2018-07-05

System and method for reusing waste heat of a transcritical refrigeration system

#9
20180180298
2018-06-28

Liquid distribution unit

#10
20180172286
2018-06-21

Method and a liquid distribution system for saving liquid and thermal energy

#11
20180135869
2018-05-17

Fuel-fired appliance with thermoelectric-powered secondary electric heating

#12
20180116483
2018-05-03

Energy recovery system for heated water

#13
20180080660
2018-03-22

Method and apparatus for reduction of water re-evaporation in a dedicated dehumidifier/water heater

#14
20170370324
2017-12-28

Waste heat recovery device, heat supply system, and operation method for waste heat recovery device

#15
20170074523
2017-03-16

Device for domestic hot water distribution

#16
20170059186
2017-03-02

Hot water recovery

#17
20150114019
2015-04-30

Heat pump system using latent heat

#18
20140263682
2014-09-18

Retrofit hot water system and method

#19
20140261763
2014-09-18

Water and heat waste reduction techniques

#20
20130126625
2013-05-23

Fuel Cell Heat Pump

#21
20130025309
2013-01-31

ENERGY-SAVING HOT WATER-HEATING DEVICE AND SYSTEM APPLICABLE TO THE SAME

#22
20130014530
2013-01-17

HEAT RECOVERY SYSTEM

#23
20120298328
2012-11-29

METHODS AND APPARATUS FOR TRANSFERRING THERMAL ENERGY

#24
20120267071
2012-10-25

Power Generation Systems, Processes For Generating Energy At An Industrial Mine Site, Water Heating Systems, And Processes Of Heating Water

#25
20120266611
2012-10-25

Method for controlling a composite device and a composite device in which the method can be applied

#26
20120255320
2012-10-11

Air-conditioning hot-water supply combined system

#27
20120177349
2012-07-12

DEVICE PLACED INTO A SHOWER HEAD FOR RECOVERY OF ENERGY USED DURING A SHOWER

#28
20120159980
2012-06-28

DEVICE FOR RECOVERING HEAT FROM WASTEWATER, THERMAL SYSTEM INCLUDING SUCH A DEVICE, AND METHOD

#29
20120151950
2012-06-21

Heat transfer system

#30
20120103574
2012-05-03

HEATING SYSTEM UTILIZING WASTE HEAT FROM ILLUMINATING DEVICE

#31
20120073782
2012-03-29

WASTEWATER HEAT RECOVERY APPARATUS MONITORING SYSTEM

#32
20120061056
2012-03-15

RECOVERY OF HEAT FROM WASTEWATER

#33
20120031987
2012-02-09

PROCESS HEATER SYSTEM

#34
20110314848
2011-12-29

Combined air-conditioning and hot-water supply system

#35
20110289674
2011-12-01

Heat exchanger

#36
20110286724
2011-11-24

Modular Thermal Energy Retention and Transfer System

#37
20110269041
2011-11-03

FUEL CELL COGENERATION SYSTEM

#38
20110226341
2011-09-22

DEVICE AND METHOD FOR REUSING GREYWATER

#39
20110203786
2011-08-25

Waste Water Heat Transfer System

#40
20110203303
2011-08-25

HEATING SYSTEM WITH OPTIMIZED RECOVERY OF WASTE WATER HEAT

#41
20110159394
2011-06-30

FUEL CELL COGENERATION SYSTEM

#42
20110107512
2011-05-12

Heat exchange devices

#43
20110061843
2011-03-17

Heat recovery method and system therefore

#44
20110048344
2011-03-03

WATER HEATING APPARATUS

#45
20110023517
2011-02-03

FACILITY FOR PRODUCING SANITARY HOT WATER FOR CONGREGATE HOUSING

#46
20100327605
2010-12-30

Power generation systems, processes for generating energy at an industrial mine site, water heating systems, and processes of heating water

#47
20100326638
2010-12-30

Waste heat recycling and gain system

#48
20100326111
2010-12-30

PLANT FOR PRODUCING SANITARY HOT WATER

#49
20100313826
2010-12-16

Heating device of drinking fountain in car

#50
20100270009
2010-10-28

Apparatus for recycling wasted heat using waste hot water

#51
20100258062
2010-10-14

COLD WATER PRE-HEATER

#52
20100236750
2010-09-23

HEAT EXCHANGE SYSTEM

#53
20100212878
2010-08-26

Heat exchanger for a bathing shower

#54
20100178043
2010-07-15

Cogeneration system using surplus electrical current

#55
20100170655
2010-07-08

Air Supply Unit

#56
20100139579
2010-06-10

Water heater special for bathroom

#57
20100132403
2010-06-03

Drainpipe heat exchanger with heat storage

#58
20100089552
2010-04-15

HEAT ENERGY RECOVERY SYSTEM

#59
20100050675
2010-03-04

Heat pump system

#60
20100047645
2010-02-25

COGENERATION SYSTEM

#61
20090239108
2009-09-24

Fuel cell cogeneration system, method of operating

#62
20090222981
2009-09-10

Integrated domestic utility system

#63
20090178662
2009-07-16

WATER HEATER GAS APPLIANCE

#64
20090139688
2009-06-04

WASTE WATER DRAIN HEAT EXCHANGER PREHEATING COLD WATER SUPPLY TO A THERMOSTATIC CONTROL VALVE

#65
20090056919
2009-03-05

Heat exchanger

#66
20090026281
2009-01-29

Energy conservation system for using heat from air conditioning units to heat water supply lines

#67
20090020282
2009-01-22

Heat exchanger and method for regulating a heat exchanger

#68
20080257535
2008-10-23

Shower trap heat recovery apparatus

#69
20080092550
2008-04-24

Direct force instant hot water distribution system

#70
20080038604
2008-02-14

Control unit for fuel-cell power generation apparatus, and control method, control program and computer-readable record medium with control program for the same

#71
20080029046
2008-02-07

Hot water reclaimer

#72
20080000616
2008-01-03

Heat exchanger and use thereof in showers

#73
20070227694
2007-10-04

Spray or Shower Arrangement and Shower Insert

#74
20070170270
2007-07-26

Waste water heat recovery system and method

#75
20050022804
2005-02-03

Cooking heat absorber

#76
20050019631
2005-01-27

Fuel cell cogeneration system