ClassID:

155564

F22B29/06 - CPC Classification

Classification description:

Steam boilers of forced-flow type of once-through type, i.e. built-up from tubes receiving water at one end and delivering superheated steam at the other end of the tubes

Sub-classes:
Recent Application in this class:
#1
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2026-04-02

THERMAL ENERGY STORAGE SYSTEMS FOR USE IN MATERIAL PROCESSING

#2
20260049712
2026-02-19

VAPOR ENGINE AND VAPOR INTRODUCTION SYSTEM

#3
20250383078
2025-12-18

STEAM GENERATOR

#4
20250382898
2025-12-18

THERMAL ENERGY STORAGE SYSTEM WITH STEAM GENERATION SYSTEM INCLUDING FLOW CONTROL AND ENERGY COGENERATION

#5
20250243788
2025-07-31

THERMAL ENERGY STORAGE SYSTEM COUPLED WITH A SOLID OXIDE ELECTROLYSIS SYSTEM

#6
20250188852
2025-06-12

ENERGY STORAGE SYSTEM AND ALUMINA CALCINATION APPLICATIONS

#7
20250179942
2025-06-05

Thermal Energy Storage System with Radiation Cavities

#8
20250179941
2025-06-05

Thermal Energy Storage with Fluid Flow Insulation

#9
20250179940
2025-06-05

ENERGY STORAGE SYSTEM AND ALUMINA CALCINATION APPLICATIONS

#10
20250163831
2025-05-22

THERMAL ENERGY STORAGE SYSTEM COUPLED WITH STEAM CRACKING SYSTEM

#11
20250163830
2025-05-22

Thermal Energy Storage System with Deep Discharge

#12
20250154882
2025-05-15

Thermal Energy Storage System with Deep Discharge

#13
20250092803
2025-03-20

THERMAL ENERGY STORAGE SYSTEMS FOR USE IN MATERIAL PROCESSING

#14
20250092802
2025-03-20

THERMAL ENERGY STORAGE SYSTEMS FOR USE IN MATERIAL PROCESSING

#15
20250092801
2025-03-20

THERMAL ENERGY STORAGE SYSTEMS FOR USE IN MATERIAL PROCESSING

#16
20250092800
2025-03-20

THERMAL ENERGY STORAGE SYSTEMS FOR USE IN MATERIAL PROCESSING

#17
20250052174
2025-02-13

Methods For Material Activation With Thermal Energy Storage System

#18
20240287919
2024-08-29

THERMAL ENERGY STORAGE SYSTEM COUPLED WITH THERMAL POWER CYCLE SYSTEMS

#19
20240254897
2024-08-01

THERMAL ENERGY STORAGE SYSTEM WITH STEAM GENERATION SYSTEM INCLUDING FLOW CONTROL AND ENERGY COGENERATION

#20
20240247597
2024-07-25

Thermal energy storage system coupled with steam cracking system

#21
20240247596
2024-07-25

Energy storage system and alumina calcination applications

#22
20240229682
2024-07-11

Methods for material activation with thermal energy storage system

#23
20240229681
2024-07-11

Calcination system with thermal energy storage system

#24
20240229680
2024-07-11

Thermal energy storage system with radiation cavities

#25
20240218811
2024-07-04

Thermal energy storage system with deep discharge

#26
20240200471
2024-06-20

Thermal energy storage system coupled with steam cracking system

#27
20240200470
2024-06-20

Energy storage system and alumina calcination applications

#28
20240191639
2024-06-13

Thermal energy storage system coupled with steam cracking system

#29
20240125251
2024-04-18

Thermal energy storage systems for use in material processing

#30
20230392522
2023-12-07

Thermal energy storage system with steam generation system including flow control and energy cogeneration

#31
20230323793
2023-10-12

Thermal energy storage system coupled with a solid oxide electrolysis system

#32
20230313710
2023-10-05

Thermal energy storage system coupled with steam cracking system

#33
20230304420
2023-09-28

Energy storage system and alumina calcination applications

#34
20230296034
2023-09-21

Thermal energy storage system coupled with thermal power cycle systems

#35
20230250736
2023-08-10

Thermal energy storage assemblage with energy cogeneration

#36
20230243278
2023-08-03

Energy storage system and applications

#37
20230220787
2023-07-13

Thermal energy storage system with deep discharge

#38
20230203968
2023-06-29

Methods for material activation with thermal energy storage system

#39
20230203967
2023-06-29

Calcination system with thermal energy storage system

#40
20230193790
2023-06-22

Thermal energy storage system with steam generator having feed-forward control

#41
20230193789
2023-06-22

Thermal energy storage system with forecast control of operating parameters

#42
20230184142
2023-06-15

Thermal energy storage system with steam generator having feedback control

#43
20230184141
2023-06-15

Thermal energy storage system with forecast control of operating parameters

#44
20230184140
2023-06-15

Thermal energy storage with fluid flow insulation

#45
20230123897
2023-04-20

Thermal energy storage system with radiation cavities

#46
20220341349
2022-10-27

Solid oxide electrolysis system with thermal energy storage system

#47
20220282638
2022-09-08

Material activation system with thermal energy storage system

#48
20220268181
2022-08-25

Thermal energy storage system with forecast control of operating parameters

#49
20220268180
2022-08-25

Thermal energy storage system with steam generator having feed-forward control

#50
20220268179
2022-08-25

Thermal energy storage system with alternating discharge operation

#51
20220259988
2022-08-18

Thermal energy storage system with steam generation system including flow control and energy cogeneration

#52
20220259987
2022-08-18

Thermal energy storage assemblage with energy cogeneration

#53
20220259986
2022-08-18

Thermal energy storage system with steam generator having feedback control

#54
20220220867
2022-07-14

Thermal energy storage assemblage

#55
20220213811
2022-07-07

Thermal energy storage assemblage with dynamic insulation and failsafe cooling

#56
20220176271
2022-06-09

Atmospheric pressure water ion plant cell disruption and extraction method and apparatus

#57
20220170386
2022-06-02

Energy storage system and applications

#58
20220113021
2022-04-14

MULTIMODE DIRECT INJECTION HEATER ASSEMBLY

#59
20220065442
2022-03-03

PROCESS FOR PRODUCING STEAM FOR A HYDROCARBON RECOVERY PROCESS

#60
20210381687
2021-12-09

Heat exchanger, such as for a solar power plant

#61
20210131312
2021-05-06

Water feedback in vertical forced-flow steam generators

#62
20200185586
2020-06-11

SYSTEMS AND METHODS FOR SELECTIVELY PRODUCING STEAM FROM SOLAR COLLECTORS AND HEATERS FOR PROCESSES INCLUDING ENHANCED OIL RECOVERY

#63
20200080446
2020-03-12

On-demand vapor generator and control system

#64
20190353344
2019-11-21

ONCE-THROUGH STEAM GENERATOR FOR USE AT OILFIELD OPERATION SITE, AND METHOD

#65
20190291020
2019-09-26

Water treatment and steam generation system for enhanced oil recovery and a method using same

#66
20190285366
2019-09-19

Hinged baffle assembly for heat recovery steam generator

#67
20190186730
2019-06-20

Method and apparatus for waste heat recovery and emission reduction

#68
20190178490
2019-06-13

Once-through evaporator systems

#69
20190178489
2019-06-13

Once-through evaporator systems

#70
20190178488
2019-06-13

Once-through evaporator systems

#71
20190178487
2019-06-13

Once-through evaporator systems

#72
20190170344
2019-06-06

Vertical heat recovery steam generator

#73
20190120480
2019-04-25

Controlled high pressure steam generation system

#74
20190049104
2019-02-14

Once through steam generator with 100% quality steam output

#75
20180195713
2018-07-12

Removal of carbonaceous microbeads

#76
20180187882
2018-07-05

Radiant to convection transition for fired equipment

#77
20180050315
2018-02-22

Reactor and heater configuration synergies in paraffin dehydrogenation process

#78
20180023805
2018-01-25

Water treatment and steam generation system for enhanced oil recovery and a method using same

#79
20180023804
2018-01-25

WATER TREATMENT AND STEAM GENERATION SYSTEM FOR ENHANCED OIL RECOVERY AND A METHOD USING SAME

#80
20170321879
2017-11-09

Horizontal Steam Generator for a Reactor Plant with a Water-Cooled Water-Moderated Power Reactor and a Reactor Plant with the said Steam Generator

#81
20170307207
2017-10-26

Control method for operating a heat recovery steam generator

#82
20160333746
2016-11-17

Plasma assisted dirty water once through steam generation system, apparatus and method

#83
20160230606
2016-08-11

Combined cycle gas turbine plant comprising a waste heat steam generator and fuel preheating step

#84
20160223190
2016-08-04

Steam generation apparatus and associated control system and methods for providing venting

#85
20160223189
2016-08-04

Steam generation apparatus and associated control system and methods for providing a desired injection pressure

#86
20160195261
2016-07-07

Once-through steam generator

#87
20160178189
2016-06-23

Steam generation apparatus and associated control system and methods for startup

#88
20160178188
2016-06-23

Continuous flow steam generator with a two-pass boiler design

#89
20160061487
2016-03-03

APPARATUS AND METHOD FOR CLEANING FLUE GAS

#90
20160053989
2016-02-25

Aqueous working fluid steam generation system

#91
20160032784
2016-02-04

Method for low load operation of a power plant with a once-through boiler

#92
20150354807
2015-12-10

Ultra low NOx combustion for steam generator

#93
20150285490
2015-10-08

Systems and methods for selectively producing steam from solar collectors and heaters for processes including enhanced oil recovery

#94
20150285048
2015-10-08

Systems and methods for selectively producing steam from solar collectors and heaters for processes including enhanced oil recovery

#95
20150276283
2015-10-01

Method for operating a system for a thermodynamic cycle with a multi-flow evaporator, control unit for a system, system for a thermodynamic cycle with a multi-flow evaporator, and arrangement of an internal combustion engine and a system

#96
20150166384
2015-06-18

Methods, systems, and apparatus for disposal of oilfield waste water

#97
20150090201
2015-04-02

Condensing heat exchanger and boiler/water heater including the same

#98
20150059660
2015-03-05

On-demand steam generator and control system

#99
20150034024
2015-02-05

Radiant to convection transition for fired equipment

#100
20150000914
2015-01-01

Method and apparatus for recycling water

#101
20140352634
2014-12-04

Method and Apparatus for Improved Firing of Biomass and Other Solid Fuels for Steam Production and Gasification

#102
20140262257
2014-09-18

Small supercritical once-thru steam generator

#103
20140216365
2014-08-07

System and method for heat recovery steam generators

#104
20140216363
2014-08-07

System and method for heat recovery steam generators

#105
20140123914
2014-05-08

ONCE-THROUGH STEAM GENERATOR

#106
20140116052
2014-05-01

Subcritical pressure high-temperature steam power plant and subcritical pressure high-temperature variable pressure operation once-through boiler

#107
20140110109
2014-04-24

DIRECT STEAM GENERATION OF BOILER BLOWDOWN

#108
20140083694
2014-03-27

Methods and Systems for Providing Steam

#109
20140083374
2014-03-27

Forced flow steam generator having wall heating surface and method for its operation

#110
20140041601
2014-02-13

Steam generator

#111
20140033712
2014-02-06

M-type pulverized coal boiler suitable for ultrahigh steam temperature

#112
20130233255
2013-09-12

Furnace tube arrangement for steam generator

#113
20130192810
2013-08-01

Tube and baffle arrangement in a once-through horizontal evaporator

#114
20130186089
2013-07-25

CONTINUOUS FLOW STEAM GENERATOR HAVING AN INTEGRATED REHEATER

#115
20130180696
2013-07-18

Method and apparatus for connecting sections of a once-through horizontal evaporator

#116
20130180681
2013-07-18

Start-up system for a once-through horizontal evaporator

#117
20130180474
2013-07-18

Flow control devices and methods for a once-through horizontal evaporator

#118
20130180471
2013-07-18

Tube arrangement in a once-through horizontal evaporator

#119
20130118419
2013-05-16

HEAT EXCHANGER FOR STEAM GENERATION FOR A SOLAR THERMAL POWER PLANT

#120
20130064722
2013-03-14

Fluidized bed reactor arrangement

#121
20120291720
2012-11-22

ONCE-THROUGH STEAM GENERATOR FOR USING AT STEAM TEMPERATURES OF ABOVE 650°C

#122
20120272929
2012-11-01

ONCE-THROUGH STEAM GENERATOR FOR BURNING DRY BROWN COAL

#123
20120247734
2012-10-04

Elongated counter-flow heat exchanger for heat recovery

#124
20120186781
2012-07-26

ONLINE PIGGING SYSTEM AND METHOD

#125
20120180739
2012-07-19

Cascading once through evaporator

#126
20120111288
2012-05-10

Steam generator

#127
20120048527
2012-03-01

Steam generator

#128
20120024241
2012-02-02

Continuous evaporator

#129
20110239961
2011-10-06

Once-through vertical evaporators for wide range of operating temperatures

#130
20110203536
2011-08-25

Continuous steam generator

#131
20110197830
2011-08-18

Continuous steam generator

#132
20110162592
2011-07-07

CONTINUOUS STEAM GENERATOR

#133
20110017449
2011-01-27

System and method for enhanced oil recovery with a once-through steam generator

#134
20100276124
2010-11-04

Feedwater debris trap

#135
20100193444
2010-08-05

Water softener regeneration

#136
20090133643
2009-05-28

Method and apparatus for steam generation

#137
20090095236
2009-04-16

Steam generator pipe, associated production method and continuous steam generator

#138
20090071419
2009-03-19

Steam generator

#139
20090050307
2009-02-26

Steam Generator Pipe, Associated Production Method and Continuous Steam Generator

#140
20070223893
2007-09-27

Heating device for smoke generator

#141
20070034167
2007-02-15

Continuous steam generator and method for operating said continuous steam generator

#142
20070028859
2007-02-08

Method for starting a continuous steam generator and continuous steam generator for carrying out said method

#143
20060288962
2006-12-28

Horizontally constructed continuous steam generator and method for the operation thereof

#144
19348596
2026-06-02

System and method for superheated working fluid injection into a well

#145
18754047
2025-10-07

Thermal energy storage system coupled with thermal power cycle systems

#146
18754042
2026-03-31

Thermal energy storage system coupled with thermal power cycle systems

#147
18754001
2026-01-06

Thermal energy storage system coupled with thermal power cycle systems

#148
18518383
2025-07-15

Thermal energy storage systems for repowering existing power plants for improving efficiency and safety