ClassID:

120893

C25C1/20 - CPC Classification

Classification description:

Electrolytic production, recovery or refining of metals by electrolysis of solutions of noble metals

Recent Application in this class:
#1
20250333870
2025-10-30

METAL COMPOUND, METAL RECOVERY ELECTRODE, AND METHOD FOR RECOVERING METALS FROM SPENT ELECTRODES

#2
20250297394
2025-09-25

CYCLONIC ELECTROLYTIC RECOVERED REDUCED PLATINUM AND WATER ELECTROLYSIS METHOD USING THE SAME

#3
20250290214
2025-09-18

CYCLONE HIGH-SPEED ELECTROLYZER USING HIGH-SPEED TURBULENCE, METHOD FOR RECOVERING VALUABLE METALS USING THE SAME, AND VALUABLE METALS RECOVERED THEREFROM

#4
20250230520
2025-07-17

SHORT PROCESS METHOD FOR EXTRACTING PRECIOUS METALS BY INTEGRATING THIOSULFATE ELECTROCHEMICAL LEACHING AND RECOVERY

#5
20250207281
2025-06-26

SYSTEM AND METHOD FOR CONTROLLING OR REMOVING HARD DEPOSITS ON ELECTROWINNING CATHODES

#6
20250188636
2025-06-12

METAL RECOVERY AGENT, METAL RECOVERY MEMBER, METAL RECOVERY LIQUID AGENT AND METAL RECOVERY METHOD

#7
20250188635
2025-06-12

AN ELECTROCHEMICAL PROCESS FOR RECOVERING PLATINUM GROUP METALS (PGMs) FROM SOLID RESIDUES

#8
20250101623
2025-03-27

Electrode, and Use and Preparation Method Thereof

#9
20240376622
2024-11-14

SILVER RECOVERY FROM END-OF-LIFE SILICON SOLAR PANELS

#10
20240375084
2024-11-14

SUPRAMOLECULAR GOLD STRIPPING FROM ACTIVATED CARBON USING ALPHA-CYCLODEXTRIN

#11
20240352610
2024-10-24

ELECTROCHEMICAL RECYCLING OF HOMOGENEOUS CATALYSTS

#12
20240344221
2024-10-17

PROCESS FOR ELECTROLYTIC PRODUCTION OF METAL POWDER

#13
20240287644
2024-08-29

RECOVERY METHOD FOR VALUABLE METALS IN COPPER ANODE SLIME

#14
20240271303
2024-08-15

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

#15
20240175156
2024-05-30

A PROCESS FOR PRECIPITATING PARTICLES OF PLATINUM GROUP METALS

#16
20230416936
2023-12-28

METHOD FOR RECOVERING METAL FROM WASTE PRINTED CIRCUIT BOARD AND A CELL THEREOF

#17
20230416873
2023-12-28

ENVIRONMENTALLY FRIENDLY PROCESS TO OPTIMIZE COPPER DISSOLUTION AND RECOVER COPPER AND GOLD FROM ELECTRONIC WASTE

#18
20230416871
2023-12-28

Method for Extracting and Recovering Gold from Aqueous Solution

#19
20230407503
2023-12-21

METHOD FOR RECOVERING NOBLE METAL FROM HETEROGENEOUS CATALYSTS CONTAINING NOBLE METAL

#20
20230374625
2023-11-23

ENVIRONMENTALLY FRIENDLY PROCESS TO OPTIMIZE COPPER DISSOLUTION AND RECOVER COPPER AND GOLD FROM ELECTRONIC WASTE

#21
20230360820
2023-11-09

SILVER POWDER, METHOD FOR PRODUCING SAME, AND CONDUCTIVE RESIN COMPOSITION

#22
20230340681
2023-10-26

METHOD FOR CLEAN RECOVERY OF PALLADIUM

#23
20230332318
2023-10-19

CIRCULAR ELECTROCHEMICAL METAL RECOVERY

#24
20230323505
2023-10-12

METHOD FOR EXTRACTION OF COINAGE METALS

#25
20230203688
2023-06-29

METHOD FOR EXTRACTING PALLADIUM

#26
20230085708
2023-03-23

Metal and tin alloy having low alpha-ray emission, and method for producing same

#27
20230077321
2023-03-16

IMPROVED ELECTROWINNING CELL

#28
20230002923
2023-01-05

RECOVERY OF NOBLE METALS

#29
20220371924
2022-11-24

Carbon-nanotube/nano-adsorption-material-based electrode and electrochemical valuable-metal recovery device using same

#30
20220364201
2022-11-17

METHODS FOR SELECTIVE LEACHING AND EXTRACTION OF PRECIOUS METALS IN ORGANIC SOLVENTS

#31
20220340998
2022-10-27

Methods for simultaneous leaching and extraction of precious metals

#32
20220178000
2022-06-09

Process for recovering gold from ores

#33
20220112616
2022-04-14

Method for cleanly extracting metallic silver

#34
20220074061
2022-03-10

Selective removal of noble metals using acidic fluids, including fluids containing nitrate ions

#35
20210252477
2021-08-19

Molecularly imprinted polymer beads for extraction of metals and uses thereof

#36
20210180199
2021-06-17

SELECTIVE REMOVAL OF NOBLE METALS USING ACIDIC FLUIDS, INCLUDING FLUIDS CONTAINING NITRATE IONS

#37
20200392634
2020-12-17

Method for production of metal article of manufacture and uses thereof

#38
20200385843
2020-12-10

METAL AND TIN ALLOY HAVING LOW alpha-RAY EMISSION, AND METHOD FOR PRODUCING SAME

#39
20200377393
2020-12-03

Method of recovering copper from a dilute metal containing solution

#40
20200248325
2020-08-06

Method for producing metallic silver by electro-deposition

#41
20200141016
2020-05-07

Method of recovering Pt or Ag or Pt and Ag from sulfate based metal solutions

#42
20200048734
2020-02-13

RECOVERY OF GOLD AND/OR SILVER

#43
20200040475
2020-02-06

Method and apparatus for recovery of noble metals, including recovery of noble metals from plated and/or filled scrap

#44
20200024762
2020-01-23

Systems and methods for producing metal clusters; functionalized surfaces; and droplets including solvated metal ions

#45
20190352742
2019-11-21

Reactor systems for recovering metals, and related methods

#46
20190211460
2019-07-11

Methods and systems for producing a metal chloride or the like

#47
20190135638
2019-05-09

Electrochemical deposition for metal ion extraction/removal from water

#48
20190100846
2019-04-04

Recovery of a metal from primary and secondary sulphurated minerals and oxidized minerals, and other compositions of valuable minerals

#49
20190024250
2019-01-24

Systems and methods for producing metal clusters; functionalized surfaces; and droplets including solvated metal ions

#50
20190009342
2019-01-10

Continuous, semicontinuous and batch methods for treating liquids and manufacturing certain constituents (e.g., nanoparticles) in liquids, apparatuses and nanoparticles and nanoparticle/liquid solution(s) and colloids resulting therefrom

#51
20180363155
2018-12-20

Method for production of metal article of manufacture and uses thereof

#52
20180326478
2018-11-15

Dendritic silver powder

#53
20180312985
2018-11-01

Selective removal of noble metals using acidic fluids, including fluids containing nitrate ions

#54
20180237933
2018-08-23

Electroplating apparatus and process for wafer level packaging

#55
20180214845
2018-08-02

Molecularly imprinted polymer beads for extraction of metals and uses thereof

#56
20180187320
2018-07-05

Valuable metal selectively adsorbing electrode and method for selectively recovering valuable metals

#57
20180142322
2018-05-24

Methods for simultaneous leaching and extraction of precious metals

#58
20180112289
2018-04-26

Methods for selective leaching and extraction of precious metals in organic solvents

#59
20180051382
2018-02-22

Dielectric barrier discharge plasma method and apparatus for synthesizing metal particles

#60
20180038005
2018-02-08

Method for manufacturing a plate material for electrochemical process

#61
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

#62
20170362681
2017-12-21

Methods for recovering metals from electronic waste, and related systems

#63
20170335477
2017-11-23

Systems and methods for producing metal clusters; functionalized surfaces; and droplets including solvated metal ions

#64
20170283927
2017-10-05

METHOD FOR THE DETERMINATION OF THE REPRESENTATIVE HOMOTOP OF A BINARY METALLIC NANOPARTICLE (AxB1-x)N AND METHOD FOR MANUFACTURING THE CORRESPONDING NANOPARTICLE

#65
20170130352
2017-05-11

Systems and methods for producing metal clusters; functionalized surfaces; and droplets including solvated metal ions

#66
20170101699
2017-04-13

RECOVERY OF GOLD AND/OR SILVER FROM SCRAP

#67
20170088964
2017-03-30

SYSTEM AND METHOD FOR RECOVERING METAL FROM METAL-CONTAINING WASTE LIQUID

#68
20170079146
2017-03-16

METHOD FOR RECYCLING OF OBSOLETE PRINTED CIRCUIT BOARDS

#69
20170073828
2017-03-16

Metal catalyst, method for manufacturing the metal catalyst and electrochemical reduction method

#70
20170067135
2017-03-09

Methods for recovering metals from electronic waste, and related systems

#71
20170044644
2017-02-16

PROCESS OF EXTRACTING GOLD AND SILVER FROM ORES AND MINING BY-PRODUCTS

#72
20170016129
2017-01-19

METHOD FOR PRODUCING CATALYTICALLY ACTIVE POWDERS FROM METALLIC SILVER OR FROM MIXTURES OF METALLIC SILVER WITH SILVER OXIDE FOR PRODUCING GAS DIFFUSION ELECTRODES

#73
20160362804
2016-12-15

WET BASED FORMULATIONS FOR THE SELECTIVE REMOVAL OF NOBLE METALS

#74
20160319444
2016-11-03

METHOD AND APPARATUS FOR RECOVERY OF NOBLE METALS, INCLUDING RECOVERY OF NOBLE METALS FROM PLATED AND/OR FILLED SCRAP

#75
20160312373
2016-10-27

Electroplating apparatus and process for wafer level packaging

#76
20160222532
2016-08-04

Purification of coal and fly ash by ionic liquids

#77
20160145714
2016-05-26

Treatment process for extraction of precious, base and rare elements

#78
20160115568
2016-04-28

Method of recovering copper and precious metals

#79
20160104898
2016-04-14

CATALYST

#80
20160095230
2016-03-31

Method for recycling of obsolete printed circuit boards

#81
20160076120
2016-03-17

Method for collecting silver ions and phosphoric acid in waste fluid

#82
20160032472
2016-02-04

Method for recovering platinum group metals from catalytic structures

#83
20160024671
2016-01-28

Aquatic metal ion harvesting device and system

#84
20150322544
2015-11-12

Brine leaching process for recovering valuable metals from oxide materials

#85
20150307955
2015-10-29

Method and apparatus for acid granulation of matte

#86
20150167189
2015-06-18

Continuous, semicontinuous and batch methods for treating liquids and manufacturing certain constituents (e.g.,nanoparticles) in liquids, apparatuses and nanoparticles and nanoparticle/liquid solution(s) and colloids resulting therefrom

#87
20150027901
2015-01-29

BIOMINING ENHANCEMENT METHOD

#88
20140311896
2014-10-23

ELECTRORECOVERY OF GOLD AND SILVER FROM THIOSULPHATE SOLUTIONS

#89
20140262810
2014-09-18

Electrochemical method for synthesizing metal-containing particles and other objects

#90
20140116886
2014-05-01

METHOD FOR EXTRACTING NOBLE AND NON-FERROUS METALS FROM REFRACTORY RAW MATERIALS

#91
20140044763
2014-02-13

COLLOIDAL SOLUTION OF SILVER NANOPARTICLES AND METHOD OF IT PREPARATION

#92
20140008238
2014-01-09

Process for recovering valuable metals from precious metal smelting slag

#93
20130341203
2013-12-26

Gold and silver extraction technology

#94
20130281726
2013-10-24

Method for recovering precious metal from solution containing precious metal ions, extracting agent or adsorbent used therefor, and back-extracting agent or desorbent

#95
20130146477
2013-06-13

METHOD FOR RECOVERING NOBLE METALS AND OTHER BYPRODUCTS FROM ORE

#96
20130140186
2013-06-06

PROCESS FOR GOLD AND SILVER LEACHING WITH THIOUREA SOLUTIONS

#97
20130126361
2013-05-23

Method for manufacturing silver triangular pyramid particles and silver triangular pyramid particles

#98
20130104701
2013-05-02

Method for recovering gold by solvent extraction

#99
20120318682
2012-12-20

Electrowinning apparatus and method for recovering useful metals from aqueous solutions

#100
20120138471
2012-06-07

Electroplating apparatus and process for wafer level packaging

#101
20120091009
2012-04-19

METHOD AND APPARATUS FOR PRODUCING NANO-SIZED SILVER PARTICLES USING ELECTROLYSIS

#102
20120014860
2012-01-19

Method for recovering nitric acid and purifying silver nitrate electrolyte

#103
20110290657
2011-12-01

Process for gold and silver leaching with thiourea solutions

#104
20110284371
2011-11-24

Method and apparatus for extracting noble metals from inorganic granular waste catalysts

#105
20110278178
2011-11-17

Continuous, semicontinuous and batch methods for treating liquids and manufacturing certain constituents (e.g., nanoparticles) in liquids, apparatuses and nanoparticles and nanoparticle/liquid solution(s) and colloids resulting therefrom

#106
20110214999
2011-09-08

METHOD AND PROCESS FOR ELEMENT AND/OR COMPOUND EXTRACTION, SEPARATION, AND PURIFICATION

#107
20110068014
2011-03-24

Method of manufacturing a Ni-Pt alloy

#108
20110068013
2011-03-24

METHOD AND APPARATUS FOR MANUFACTURING METAL NANO-PARTICLES USING ALTERNATING CURRENT ELECTROLYSIS

#109
20100065436
2010-03-18

METHOD OF EXTRACTING PLATINUM GROUP METALS FROM WASTE CATALYSTS THROUGH ELECTROCHEMICAL PROCESS

#110
20100058567
2010-03-11

High capacity anode preparation apparatus

#111
20100012502
2010-01-21

PROCESS FOR RECOVERY OF METAL-CONTAINING VALUES FROM MINERALS AND ORES

#112
20090071840
2009-03-19

METHOD FOR EXTRACTING METALS FROM ORE

#113
20070284261
2007-12-13

Method for manufacturing silver triangular pyramid particles and silver triangular pyramid particles

#114
20070272055
2007-11-29

Process for Gold and Silver Leaching with Thiourea Solutions

#115
20070227903
2007-10-04

Precious Metal Recovery

#116
20070098590
2007-05-03

NI-PT ALLOY AND TARGET COMPRISING THE ALLOY

#117
20060278534
2006-12-14

Method for producing nanosilver on a large scale, method for manufacturing nanosilver-adsorbed fiber, and antibacterial fiber thereby

#118
20060068026
2006-03-30

Thermal electrochemical synthesis method for production of stable colloids of "naked" metal nanocrystals

#119
19219256
2025-09-16

Silver ion sterilization solution preparation system

#120
18765061
2025-04-01

Split type sterilization electrolytic silver ion spray device

#121
15176758
2016-11-29

Molecularly imprinted polymer beads for extraction of metals and uses thereof

#122
15005086
2020-11-03

System and method for recovering base and precious metals