ClassID:

120926

C25C7/04 - CPC Classification

Classification description:

Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells Diaphragms; Spacing elements

Recent Application in this class:
#1
20260146351
2026-05-28

THREE-COMPARTMENT ELECTROWINNING CELL AND METHODS

#2
20260062826
2026-03-05

SELECTIVE RECOVERY DEVICE FOR LITHIUM USING FLOW ELECTRODE CAPACITIVE DEIONIZATION AND METHOD FOR SEPARATING AND RECOVERING LITHIUM USING THE SAME

#3
20250376779
2025-12-11

MULTI-ANODE ELECTROLYTIC CELL

#4
20250354285
2025-11-20

ELECTROCHEMICAL METAL DEPOSITION SYSTEM AND METHOD

#5
20250320620
2025-10-16

EXTRACTION OF CALCIUM AND OTHER VALUABLE ELEMENTS VIA SONIC STIMULATION AND SEQUENTIAL ELECTROLYSIS

#6
20250257491
2025-08-14

ELECTROCHEMICAL MEMBRANE REACTOR SYSTEMS FOR REMOVING LITHIUM FROM A LITHIUM-CONTAINING SOLUTION AND RELATED METHODS

#7
20250236980
2025-07-24

REDOX FLOW LITHIUM EXTRACTION SYSTEMS AND METHODS OF USE THEREOF

#8
20250219177
2025-07-03

METHOD FOR RECOVERING LITHIUM FROM WASTE LITHIUM ION BATTERIES

#9
20250188634
2025-06-12

SYSTEM AND PROCESS FOR EXTRACTING LITHIUM FROM A SALTWATER

#10
20250146156
2025-05-08

GENERATING AND CONTROLLING MAGNETIC FIELDS FOR ELECTROLYZER STACKS

#11
20250122636
2025-04-17

ELECTROCHEMICAL APPARATUS FOR EXTRACTING COPPER FROM COPPER-CONTAINING WASTEWATER AND EXTRACTION METHOD

#12
20250109516
2025-04-03

IMPURITY REMOVAL IN AN IRON CONVERSION SYSTEM

#13
20250092537
2025-03-20

LI RECOVERY PROCESSES AND ONSITE CHEMICAL PRODUCTION FOR LI RECOVERY PROCESSES

#14
20250051948
2025-02-13

ELECTROCHEMICAL COGENERATION OF IRON AND COMMODITY CHEMICALS

#15
20250051947
2025-02-13

ELECTROCHEMICAL REACTOR AND METHOD FOR REDUCING IRON FROM AN IRON-CONTAINING FEEDSTOCK

#16
20250046846
2025-02-06

ELECTROLYTIC REDUCTION SYSTEM AND METHOD OF VANADIUM ELECTROLYTE

#17
20250011957
2025-01-09

SYSTEMS AND METHODS FOR DIRECT LITHIUM EXTRACTION

#18
20250011950
2025-01-09

LI RECOVERY PROCESSES AND ONSITE CHEMICAL PRODUCTION FOR LI RECOVERY PROCESSES

#19
20250011949
2025-01-09

LI RECOVERY PROCESSES AND ONSITE CHEMICAL PRODUCTION FOR LI RECOVERY PROCESSES

#20
20250003100
2025-01-02

METHOD OF RECOVERING ACID AND ALKALI FROM RAFFINATE GENERATED FROM METAL EXTRACTION PROCESS

#21
20240376621
2024-11-14

HIGH-EFFICIENCY ELECTROLYSIS OF IRON ORE FOR IRON PRODUCTION

#22
20240368789
2024-11-07

2-STEP IRON CONVERSION SYSTEM

#23
20240368788
2024-11-07

ORE DISSOLUTION AND IRON CONVERSION SYSTEM

#24
20240309532
2024-09-19

MEMBRANE-BASED ALKALI METAL PRODUCTION SYSTEM

#25
20240309531
2024-09-19

TWO-COMPARTMENT ELECTROLYZER

#26
20240309529
2024-09-19

MEMBRANE-BASED ION EXCHANGE SYSTEM

#27
20240271303
2024-08-15

ELECTROCHEMICAL SYSTEM AND METHOD FOR SELECTIVE RECOVERY OF GOLD FROM ELECTRONIC WASTE AND MINING STREAMS

#28
20240263333
2024-08-08

IRON CONVERSION SYSTEM AND APPLICATIONS

#29
20240247391
2024-07-25

METHOD FOR PRODUCING METALLIC ALUMINUM AND POLYSILICON WITH HIGH-SILICON ALUMINUM-CONTAINING RESOURCE

#30
20240209536
2024-06-27

SYSTEM AND PROCESS FOR PURIFICATION AND CONCENTRATION OF LITHIUM

#31
20240167181
2024-05-23

SYSTEM OF RECOVERING LITHIUM PRECURSOR AND METHOD OF RECOVERING LITHIUM PRECURSOR

#32
20240158939
2024-05-16

IMPURITY REMOVAL IN AN IRON CONVERSION SYSTEM

#33
20240084471
2024-03-14

SYSTEM AND DEVICE FOR OPTIMISING METAL ELECTRODEPOSITION

#34
20240084464
2024-03-14

LI RECOVERY PROCESSES AND ONSITE CHEMICAL PRODUCTION FOR LI RECOVERY PROCESSES

#35
20240014456
2024-01-11

ELECTROCHEMICAL LITHIUM RECOVERY SYSTEM

#36
20240011167
2024-01-11

LI RECOVERY PROCESSES AND ONSITE CHEMICAL PRODUCTION FOR LI RECOVERY PROCESSES

#37
20230392274
2023-12-07

Reference Electrode for Molten Salts

#38
20230392272
2023-12-07

ELECTROCHEMICAL CELL AND PROCESS FOR PRODUCING METAL AND CHLORINE GAS

#39
20230374683
2023-11-23

Ore dissolution and iron conversion system

#40
20230366115
2023-11-16

2-step iron conversion system

#41
20230349061
2023-11-02

Process for production of refined lithium metal

#42
20230349055
2023-11-02

Li recovery processes and onsite chemical production for Li recovery processes

#43
20230311074
2023-10-05

REDOX MEMBRANES FOR LITHIUM EXTRACTION

#44
20230304172
2023-09-28

Li recovery processes and onsite chemical production for Li recovery processes

#45
20230303401
2023-09-28

Preparation of lithium carbonate from lithium chloride containing brines

#46
20230212769
2023-07-06

METHOD AND APPARATUS FOR EXTRACTING LITHIUM FROM SOLUTION USING BIPOLAR ELECTRODES

#47
20230203689
2023-06-29

Process for production of refined lithium metal

#48
20230203687
2023-06-29

MEMBRANE-STACKED ELECTROLYTIC BATH FOR LITHIUM EXTRACTION FROM SALT LAKES BY ELECTROCHEMICAL INTERCALATION/DEINTERCALATION

#49
20230183876
2023-06-15

Li ION RECOVERY MEMBER AND Li RECOVERY DEVICE USING SAME

#50
20230183875
2023-06-15

Electrowinning cell for the production of lithium and method of using same

#51
20230167566
2023-06-01

CERIUM OXIDE NANOPARTICLES, METHODS FOR FABRICATING THE SAME AND METHODS FOR FABRICATING A SEMICONDUCTOR DEVICE USING THE SAME

#52
20230131891
2023-04-27

Method And System For Extracting Metal And Oxygen From Powdered Metal Oxides

#53
20230119799
2023-04-20

Electrowinning cell for the production of lithium and method of using same

#54
20230087180
2023-03-23

PREPARATION OF LITHIUM CARBONATE FROM LITHIUM CHLORIDE CONTAINING BRINES

#55
20230082450
2023-03-16

ELECTROWINNING CELLS FOR THE SEGREGATION OF THE CATHODIC AND ANODIC COMPARTMENTS

#56
20230077321
2023-03-16

IMPROVED ELECTROWINNING CELL

#57
20230029726
2023-02-02

Li recovery processes and onsite chemical production for Li recovery processes

#58
20220389601
2022-12-08

ELECTROCHEMICAL METAL DEPOSITION SYSTEM AND METHOD

#59
20220380919
2022-12-01

2-step iron conversion system

#60
20220380918
2022-12-01

Ore dissolution and iron conversion system

#61
20220380917
2022-12-01

Li recovery processes and onsite chemical production for Li recovery processes

#62
20220380914
2022-12-01

Li recovery processes and onsite chemical production for Li recovery processes

#63
20220380912
2022-12-01

Li recovery processes and onsite chemical production for Li recovery processes

#64
20220267918
2022-08-25

MOLTEN SALT MEMBRANE ELECTROLYZER

#65
20220216495
2022-07-07

Electrolytic reduction system and method of vanadium electrolyte

#66
20220112616
2022-04-14

Method for cleanly extracting metallic silver

#67
20220074062
2022-03-10

Electrolytic production of high-purity lithium from low-purity sources

#68
20220042182
2022-02-10

Li recovery processes and onsite chemical production for Li recovery processes

#69
20210277529
2021-09-09

Production of sodium metal by dual temperature electrolysis processes

#70
20200399137
2020-12-24

Preparation of lithium carbonate from lithium chloride containing brines

#71
20200248325
2020-08-06

Method for producing metallic silver by electro-deposition

#72
20200149174
2020-05-14

PRODUCING LITHIUM

#73
20200149171
2020-05-14

Method and apparatus for recovering metals and sulfur from feed streams containing metal sulfides and polysulfides

#74
20200091509
2020-03-19

Production of lithium via electrodeposition

#75
20200087806
2020-03-19

Lithium metal synthesis

#76
20200063278
2020-02-27

Electrodic support structure for coaxial electrolytic cells

#77
20190292670
2019-09-26

Method and apparatus for producing electrolytic aluminum foil

#78
20190153607
2019-05-23

High purity tin and method for producing same

#79
20190078223
2019-03-14

ANODE-STIFFENING DEVICE AND STIFFENING SYSTEM THAT USES SAID DEVICE

#80
20180363153
2018-12-20

Method and apparatus for recovering metals and sulfur from feed streams containing metal sulfides and polysulfides

#81
20180355494
2018-12-13

Closed loop systems and methods for recycling lead acid batteries

#82
20180340264
2018-11-29

METHODS AND SYSTEMS FOR CONTROLLING IMPURITY METAL CONCENTRATION DURING METALLURGIC PROCESSES

#83
20180327915
2018-11-15

Multipurpose electrolytic device (MPED) for forced or spontaneous electrolytic processes, with independent electrolytes

#84
20180312986
2018-11-01

Ion-selective composite materials and method of preparation

#85
20180298504
2018-10-18

Filter press device for electrodeposition of metal from solutions, which is made up of separating elements conformed by ion exchange membranes forming a plurality of anolyte and catholyte chambers, wherein the electrodes are connected in series with automatic detachment of the metal product

#86
20180187317
2018-07-05

METHOD AND APPARATUS FOR RECOVERING METALS AND SULFUR FROM FEED STREAMS CONTAINING METAL SULFIDES AND POLYSULFIDES

#87
20180179651
2018-06-28

Electrodic apparatus for the electrodeposition of non-ferrous metals

#88
20180072581
2018-03-15

Preparation of lithium carbonate from lithium chloride containing brines

#89
20180016684
2018-01-18

Electrolytic system for precipitating metals and regenerating the oxidising agents used in the leaching of metals, scrap metal, metal sulphurs, sulphide minerals, raw materials containing metals from solutions from leaching, including a process for combining the precipitation and the oxidation in a single step, eliminating the steps of filtration, washing, transportation and manipulation of highly toxic reagents

#90
20170256802
2017-09-07

Intercalation membrane

#91
20170058414
2017-03-02

INSERTABLE ELECTRODE DEVICE THAT DOES NOT GENERATE ACID MIST OR OTHER GASES, AND METHOD

#92
20170002472
2017-01-05

METHOD FOR OPTIMIZING THE YIELD OF ELECTROEXTRACTION OF HEAVY METALS IN AQUEOUS SOLUTION WITH A HIGH SALT CONCENTRATION, AND DEVICE FOR THE IMPLEMENTATION THEREOF

#93
20160326662
2016-11-10

DEVICE AND PROCESS FOR INDUCTIVELY SUPPRESSING ACID MIST FROM ELECTROWINNING

#94
20160289853
2016-10-06

HIGH PURITY INDIUM AND MANUFACTURING METHOD THEREFOR

#95
20160251763
2016-09-01

Electrolytic cell equipped with concentric electrode pairs

#96
20160068982
2016-03-10

Electrolytic cell for metal electrowinning

#97
20160047055
2016-02-18

Anode assembly, system including the assembly, and method of using same

#98
20160032473
2016-02-04

ELECTROCHEMICAL CELL FOR RECOVERY OF METALS FROM SOLID METAL OXIDES

#99
20160024670
2016-01-28

Electrolytic cell for metal electrowinning

#100
20150259215
2015-09-17

Preparation of lithium carbonate from lithium chloride containing brines

#101
20150252486
2015-09-10

Methods and systems for controlling impurity metal concentration during metallurgic processes

#102
20150252485
2015-09-10

METHOD AND ELECTROCHEMICAL DEVICE FOR LOW ENVIRONMENTAL IMPACT LITHIUM RECOVERY FROM AQUEOUS SOLUTIONS

#103
20150211135
2015-07-30

Light metal production

#104
20150053571
2015-02-26

PROCESS FOR RECOVERING ALKALI METALS AND SULFUR FROM ALKALI METAL SULFIDES AND POLYSULFIDES

#105
20150021195
2015-01-22

ELECTROWINNING CELL AND PROCESS

#106
20150014184
2015-01-15

PRODUCING LITHIUM

#107
20140353165
2014-12-04

Effect of operating parameters on the performance of electrochemical cell in copper-chlorine cycle

#108
20140246307
2014-09-04

Electrochemical cell used in production of hydrogen using Cu—Cl thermochemical cycle

#109
20140246306
2014-09-04

Anodic compartment for metal electrowinning cells

#110
20140199577
2014-07-17

Alkali metal intercalation material as an electrode in an electrolytic cell

#111
20140076730
2014-03-20

METHOD AND APPARATUS FOR EXTRACTING ENERGY AND METAL FROM SEAWATER ELECTRODES

#112
20140027301
2014-01-30

SELECTIVE REDUCTIVE ELECTROWINNING APPARATUS AND METHOD

#113
20120205239
2012-08-16

Anode assembly, system including the assembly, and method of using same

#114
20110135565
2011-06-09

Method and system for producing hydrogen using sodium ion separation membranes

#115
20100252442
2010-10-07

Method and device for selective cation extraction by electrochemical transfer in solution and applications of said method

#116
20100200420
2010-08-12

CONTROL OF BY-PASS CURRENT IN MULTI-POLAR LIGHT METAL REDUCTION CELLS

#117
20090152104
2009-06-18

MOLTEN SALT ELECTROLYZER FOR REDUCING METAL, METHOD FOR ELECTROLYZING THE SAME, AND PROCESS FOR PRODUCING REFRACTORY METAL WITH USE OF REDUCING METAL

#118
20090000955
2009-01-01

Oxygen-producing inert anodes for SOM process

#119
20080149494
2008-06-26

Method for producing sheet-form electrolytic copper from halide solution

#120
20080110765
2008-05-15

Method For Producing Metal

#121
20070246368
2007-10-25

Electrolysis cell for producing alkali metal

#122
20060191799
2006-08-31

Electrochemical reduction of metal oxides

#123
20060180462
2006-08-17

Minimising carbon transfer in an electrolytic cell

#124
20050145481
2005-07-07

Transfer and insulation device for electrolysis

#125
18122581
2024-06-18

Membrane-based alkali metal extraction system

#126
17948055
2023-10-10

Water-impermeable carbon-based electrolyte and separation membrane and fabrication thereof

#127
17002834
2022-10-11

Low temperature lithium production