ClassID:

161988

F28D20/0043 - CPC Classification

Classification description:

Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups or using liquid heat storage material specially adapted for long-term heat storage; Underground tanks; Floating reservoirs; Pools; Ponds

Recent Application in this class:
#1
20260071829
2026-03-12

THERMAL ENERGY STORAGE SYSTEMS WITH IMPROVED SEISMIC STABILITY

#2
20260016236
2026-01-15

COMBINED GROUND-BASED HEAT EXCHANGE AND THERMAL STORAGE

#3
20250146712
2025-05-08

Any Depth Ground Thermal Battery

#4
20240344776
2024-10-17

THERMAL ENERGY STORAGE SYSTEMS WITH IMPROVED SEISMIC STABILITY

#5
20240035621
2024-02-01

Thermal storage in pressurized fluid for compressed air energy storage systems

#6
20230332843
2023-10-19

Compressed gas energy storage system

#7
20230272982
2023-08-31

Thermal energy storage and method for constructing such a thermal energy storage

#8
20230220953
2023-07-13

Thermal storage in pressurized fluid for compressed air energy storage systems

#9
20220412667
2022-12-29

THERMAL ENERGY STORAGE

#10
20220373269
2022-11-24

Thermal energy storage system and media

#11
20220357111
2022-11-10

Device for energy transfer and for energy storage in a liquid reservoir

#12
20220268515
2022-08-25

GAS LIQUEFACTION USING HYBRID PROCESSING

#13
20220090585
2022-03-24

Compressed gas energy storage system

#14
20220074547
2022-03-10

Thermal storage in pressurized fluid for compressed air energy storage systems

#15
20220034600
2022-02-03

Particle-based thermal energy storage systems

#16
20210404435
2021-12-30

Combined pumped hydro and thermal energy storage

#17
20210285730
2021-09-16

UNDERGROUND BUFFER STORAGE DEVICE AND METHOD FOR BUFFER STORAGE IN A HEAT STORAGE MEDIUM

#18
20210018274
2021-01-21

UNDERGROUND THERMAL ENERGY STORAGE

#19
20200284525
2020-09-10

BUFFER STORE

#20
20200263830
2020-08-20

Thermal storage in pressurized fluid for compressed air energy storage systems

#21
20200124356
2020-04-23

Particle-based thermal energy storage systems

#22
20190368824
2019-12-05

DEVICE COMPRISING A RECEPTACLE FOR STORING A LIQUID

#23
20190154307
2019-05-23

Underground heat exchanger

#24
20190093959
2019-03-28

Trans-seasonal cold-storage heat-storage system

#25
20180356163
2018-12-13

METHOD AND DEVICE FOR INPUTTING THERMAL ENERGY INTO AND REMOVING THERMAL ENERGY FROM A BODY OF WATER

#26
20180299139
2018-10-18

Wall part, heat buffer and energy exchange system

#27
20180142963
2018-05-24

Heat exchange system with a cooling device and method for exchanging heat by using the heat exchange system

#28
20180112930
2018-04-26

Energy Store, Power Plant having an Energy Store, and Method for Operating the Energy Store

#29
20180087845
2018-03-29

Underground thermal energy storage

#30
20180073817
2018-03-15

Efficiency of power plants

#31
20170299279
2017-10-19

ARRANGEMENT AND METHOD FOR STORING THERMAL ENERGY

#32
20170167801
2017-06-15

HYGROSCOPIC COMPOSITE MATERIAL

#33
20170045302
2017-02-16

Heat store container with inclined plates for improved temperature distribution

#34
20160169592
2016-06-16

Spider diffuser system

#35
20150354903
2015-12-10

Thermal energy storage with an expansion space

#36
20150276326
2015-10-01

System for reversibly storing electrical energy as thermal energy

#37
20150276325
2015-10-01

Energy storage arrangement having tunnels configured as an inner helix and as an outer helix

#38
20150233648
2015-08-20

Cold reservoir device and cooling system arrangement

#39
20150219402
2015-08-06

Methods for storing and releasing thermal energy, associated reactor and application to the interseasonal storage of solar heat

#40
20150122356
2015-05-07

Spider diffuser system

#41
20150113987
2015-04-30

Integrated renewable energy and asset system

#42
20140090801
2014-04-03

Energy efficient thermally dynamic building design and method

#43
20120152488
2012-06-21

Underground thermal battery storage system

#44
20120132393
2012-05-31

Arrangement for storing thermal energy

#45
20110303388
2011-12-15

System and Method for Using Recyclables for Thermal Storage

#46
20110166718
2011-07-07

Controller for energy supply systems

#47
20110108018
2011-05-12

SOLAR BASED ENERGY CONVERSION APPARATUS

#48
20090301703
2009-12-10

Heat storage for room and tap water heating

#49
20090294096
2009-12-03

THERMAL ENERGY STORAGE SYSTEM

#50
20090277603
2009-11-12

Temperature equalization air supply system of natural thermal energy with intermediate thermal storage

#51
20090277602
2009-11-12

Temperature equalization air supply system of natural thermal energy with intermediate thermal storage

#52
20080041054
2008-02-21

Production of hydrogen using low-energy solar energy

#53
20070056304
2007-03-15

Method, arrangement and apparatus for facilitating environmental climate control of a building structure

#54
18316270
2025-09-23

Heating and cooling of buildings using underground heat storage with horizontal bores

#55
18316267
2025-10-28

Heating and cooling of buildings using underground heat storage