ClassID:

119831

C22C2202/04 - CPC Classification

Classification description:

Physical properties Hydrogen absorbing

Recent Application in this class:
#1
20260098329
2026-04-09

STEEL MATERIAL WITH GOOD FATIGUE PROPERTY IN HYDROGEN AND METHOD FOR PRODUCING THE SAME, AND STEEL PIPE AND METHOD FOR PRODUCING THE SAME

#2
20260001759
2026-01-01

DEVICE FOR IN-SITU HYDROGEN ABSORPTION AND HYDROLYSIS HYDROGEN PRODUCTION BASED ON MAGNESIUM-BASED SOLID HYDROGEN STORAGE ALLOY AND USE THEREOF

#3
20250188571
2025-06-12

HYDROGEN STORAGE ALLOYS

#4
20250171880
2025-05-29

USE OF ALUMINUM-COPPER ALLOY AS HYDROGEN DEVICE, AND HYDROGEN-RESISTANT MEMBER FOR HYDROGEN DEVICE AND METHOD FOR USING SAME

#5
20250162862
2025-05-22

HEAT-GENERATING MATERIAL, AND HEAT-GENERATING SYSTEM AND METHOD OF SUPPLYING HEAT USING THE SAME

#6
20250137104
2025-05-01

HYDROGEN ABSORBING ALLOY FOR ALKALINE STORAGE BATTERY

#7
20250084507
2025-03-13

HYDROGEN STORAGE ALLOY, HYDROGEN OCCLUDING METHOD, HYDROGEN RELEASING METHOD, AND POWER GENERATING SYSTEM

#8
20250075294
2025-03-06

MAGNESIUM-BASED COMPOSITE MATERIAL AND METHOD OF FORMING THE SAME

#9
20240287658
2024-08-29

3D Printed Hydrogen Storage Systems Using Non-Pyrophoric Hydrogen Storage Alloys

#10
20240263284
2024-08-08

AB2 TYPE-BASED HYDROGEN STORAGE ALLOYS, METHODS OF PREPARATION AND USES THEREOF

#11
20240247331
2024-07-25

AUSTENITIC STAINLESS STEEL FOR HIGH-PRESSURE HYDROGEN GAS OR LIQUID HYDROGEN, AND MANUFACTURING METHOD THEREFOR

#12
20240208807
2024-06-27

HYDROGEN STORAGE MATERIAL, HYDROGEN STORAGE CONTAINER, AND HYDROGEN SUPPLY APPARATUS

#13
20240047715
2024-02-08

AN ENERGY STORAGE DEVICE

#14
20240034622
2024-02-01

HYDROGEN STORAGE MATERIAL, HYDROGEN STORAGE CONTAINER AND HYDROGEN SUPPLY APPARATUS

#15
20230272880
2023-08-31

Non-pyrophoric hydrogen storage alloys and hydrogen storage systems using the alloys

#16
20230265546
2023-08-24

Hydrogen storage systems using non-pyrophoric hydrogen storage alloys

#17
20230265539
2023-08-24

CONTINUOUS ANNEALING LINE, CONTINUOUS HOT-DIP GALVANIZING LINE, AND STEEL SHEET PRODUCTION METHOD

#18
20230212718
2023-07-06

HYDROGEN STORAGE ALLOYS

#19
20230127592
2023-04-27

Steel material and method for producing same

#20
20230076463
2023-03-09

Hydrogen storage alloy for alkaline storage battery

#21
20230044663
2023-02-09

Non-pyrophoric hydrogen storage alloys and hydrogen storage systems using the alloys

#22
20230041451
2023-02-09

3D printed hydrogen storage systems using non-pyrophoric hydrogen storage alloys

#23
20220282355
2022-09-08

Hydrogen storage material, hydrogen storage container, and hydrogen supply apparatus

#24
20220275480
2022-09-01

METHOD FOR MAKING HYDROGEN STORAGE ALLOYS

#25
20220127703
2022-04-28

Hydrogen storage alloy

#26
20220069285
2022-03-03

Hydrogen absorbing alloy, negative electrode comprising same and nickel-metal hydride secondary battery comprising same

#27
20220006070
2022-01-06

AB5-based hydrogen storage alloy, electrode for Ni-MH battery, secondary battery, and preparation method of hydrogen storage alloy

#28
20200347482
2020-11-05

Green metal composite material

#29
20200002786
2020-01-02

Green metal composite material

#30
20190362870
2019-11-28

Rare-earth magnet and method for manufacturing same

#31
20190348671
2019-11-14

Hydrogen storage alloy

#32
20180214940
2018-08-02

Mg-based alloy for hydrogen storage

#33
20180083324
2018-03-22

High pressure type hydride secondary battery

#34
20170288217
2017-10-05

Rare earth based hydrogen storage alloy and application thereof

#35
20160141083
2016-05-19

Rare-earth magnet and method for manufacturing same

#36
20150243976
2015-08-27

Hydrogen absorption alloy powder, negative electrode, and nickel-hydrogen secondary cell

#37
20130277607
2013-10-24

Metal hydride alloys having improved activation and high rate performance

#38
20130202964
2013-08-08

Hydrogen absorbing alloy, negative pole, and nickel—hydrogen secondary battery

#39
20120171461
2012-07-05

Hydrogen storage unit

#40
20120164432
2012-06-28

Hydrogen storage alloy and hydrogen storage unit using same

#41
20110033748
2011-02-10

HYDROGEN-ABSORBING ALLOY POWDER, METHOD FOR TREATING THE SURFACE THEREOF, NEGATIVE ELECTRODE FOR ALKALINE STORAGE BATTERY, AND ALKALINE STORAGE BATTERY

#42
20100044478
2010-02-25

Nanotization of magnesium-based hydrogen storage material

#43
20100031822
2010-02-11

Hydrogen separation membrane on a porous substrate

#44
20090289222
2009-11-26

PROCESS FOR PREPARING COMPOSITES COMPRISING CARBON AND MAGNESIUM FOR HYDROGEN STORAGE

#45
20090025509
2009-01-29

Hydrogen storage material and method of producing the same

#46
20080070117
2008-03-20

Composition for negative electrode of alkaline electrolyte battery

#47
20070270301
2007-11-22

Thermal method for fabricating a hydrogen separation membrane on a porous substrate

#48
20060194105
2006-08-31

Alkaline storage cell

#49
20050126663
2005-06-16

Catalyzed hydrogen desorption in Mg-based hydrogen storage material and methods for production thereof