ClassID:

119326

C22B11/046 - CPC Classification

Classification description:

Obtaining noble metals by wet processes; Recovery of noble metals from waste materials from manufactured products, e.g. from printed circuit boards, from photographic films, paper or baths

Recent Application in this class:
#1
20260098320
2026-04-09

METHODS FOR THE SEPARATION AND/OR PURIFICATION OF METALS

#2
20250357501
2025-11-20

FUEL CELL STACK AND MEMBRANE ELECTRODE ASSEMBLY DISASSEMBLY FOR COMPONENT SEPARATION AND RECYCLING

#3
20250354235
2025-11-20

ELECTROLYZER AND MEMBRANE ELECTRODE ASSEMBLY DISASSEMBLY FOR COMPONENT SEPARATION AND RECYCLING

#4
20250333870
2025-10-30

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

#5
20250290174
2025-09-18

PROCESS FOR THE RECOVERY OF PLATINUM FROM SPENT PLATINUM-CONTAINING SOLID RESIDUES

#6
20250243560
2025-07-31

METAL EXTRACTANT AND SEPARATION RECOVERY METHOD OF METAL IONS USING METAL EXTRACTANT

#7
20250236928
2025-07-24

ELECTRONIC WASTE COMPOSITE ARTICLE OR MATERIAL AND PROCESS FOR MAKING SAME

#8
20250230522
2025-07-17

ASSEMBLY AND METHOD FOR PHOTOVOLTAIC (PV) SYSTEM RECYCLING

#9
20250230520
2025-07-17

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

#10
20250153187
2025-05-15

MATERIALS PROCESSING IN SOLAR MODULE RECYCLING

#11
20250137090
2025-05-01

Compositions and processes for the extraction of metals using non-aqueous solvents

#12
20250002654
2025-01-02

METHODS AND APPLICATIONS FOR SYNTHESIS OF CARBAZOLE PHOSPHAZENE BASED POLYMER AND RECOVERY OF VALUABLE METAL ELEMENTS FROM ELECTRONIC WASTE MATERIALS

#13
20240425947
2024-12-26

ELECTRIFIED LIQUID-LIQUID EXTRACTION SYSTEM FOR SELECTIVE EXTRACTION OF PRECIOUS METAL SPECIES

#14
20240343969
2024-10-17

METHOD FOR RECYCLING AN LED

#15
20240247336
2024-07-25

HIGH-EFFICIENCY GOLD RECOVERY BY ADDITIVE-INDUCED SUPRAMOLECULAR POLYMERIZATION OF CYCLODEXTRIN

#16
20240246090
2024-07-25

Materials processing in solar module recycling

#17
20240229192
2024-07-11

PROCESS FOR RECOVERING SILVER FROM SCRAP PHOTOVOLTAIC CELLS

#18
20240191323
2024-06-13

METHOD FOR RECYCLING SILVER FROM WASTE IC CHIPS USING SOLUBLE STARCH

#19
20230416873
2023-12-28

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

#20
20230416867
2023-12-28

GAS-ASSISTED MICROFLOW EXTRACTION (GAME) SYSTEM PATENT

#21
20230374626
2023-11-23

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

#22
20230374625
2023-11-23

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

#23
20230374380
2023-11-23

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

#24
20230357885
2023-11-09

ULTRAFAST FLASH JOULE HEATING SYNTHESIS METHODS AND SYSTEMS FOR PERFORMING SAME

#25
20230332318
2023-10-19

CIRCULAR ELECTROCHEMICAL METAL RECOVERY

#26
20230197976
2023-06-22

Method for recycling hydrogen fuel cell of new energy vehicle

#27
20230175097
2023-06-08

METHODS FOR THE SEPARATION AND/OR PURIFICATION OF METALS

#28
20230175096
2023-06-08

Cost-effective method for recovering precious metals in circuit board components

#29
20230046406
2023-02-16

CHROMATOGRAPHIC METHOD FOR SEPARATING TRANSITION METALS

#30
20220307106
2022-09-29

Method of recovering materials bound to a metallic substrate using cryogenic cooling and an aqueous solution

#31
20220267879
2022-08-25

Method for whole component microwave fast digestion and precious metal extraction from ionic liquid of waste circuit board

#32
20220228235
2022-07-21

Method for recycling silver present on a photovoltaic cell

#33
20220205063
2022-06-30

Comprehensive recovery method of pyrolysis polymetallic product from waste integrated circuit board

#34
20220145420
2022-05-12

METHOD AND DEVICE FOR RECOVERING METAL BY LEACHING

#35
20220136080
2022-05-05

METHOD FOR RECOVERING GOLD AND COPPER FROM ELECTRONIC COMPONENTS

#36
20210388461
2021-12-16

METHOD FOR RECOVERING VALUABLES

#37
20210324496
2021-10-21

Method for enriching precious metals from printed circuit board incineration ash from molten pool by circulating chlorination

#38
20210296658
2021-09-23

METHOD OF RECOVERING MATERIALS FORMING FUEL CELL STACK

#39
20210277499
2021-09-09

Method of recovering materials bound to a metallic substrate using cryogenic cooling

#40
20210265678
2021-08-26

METHOD AND SYSTEM FOR SUPERCRITICAL FLUID EXTRACTION OF METAL

#41
20210246527
2021-08-12

Method for the Removal and Recovery of Metals and Precious Metals from Substrates

#42
20210130925
2021-05-06

Metal recovery method using adsorbent

#43
20210130924
2021-05-06

SYSTEMS AND METHODS FOR RECOVERING SCRAP SILVER

#44
20210086164
2021-03-25

Irreversible covalent organic framework for efficient and selective gold recovery and preparation method thereof

#45
20210060627
2021-03-04

System and method for obtaining mineral rich powder from electronic waste

#46
20210040581
2021-02-11

INTEGRATED ELECTRONIC WASTE RECYCLING AND RECOVERY SYSTEM AND PROCESS OF USING SAME

#47
20200318218
2020-10-08

PROCESS FOR THE RECOVERY AND RECYCLING OF MATERIALS THAT CONSTITUTE SUPPORTED PALLADIUM MEMBRANES

#48
20200263275
2020-08-20

Process for recovering metal from electronic waste

#49
20200238301
2020-07-30

SYSTEM AND METHOD FOR RECOVERING METALS FROM ELECTRONIC SCRAP AND AUTO SHRED RESIDUE FINES

#50
20200165698
2020-05-28

Process for recovering precious metals from secondary resources

#51
20200165697
2020-05-28

INTEGRATED RECOVERY OF METALS FROM COMPLEX SUBSTRATES

#52
20200048734
2020-02-13

RECOVERY OF GOLD AND/OR SILVER

#53
20200017935
2020-01-16

Systems and methods of efficiently recovering precious metals using an alkaline leach, ultrasound, and electrolysis

#54
20190352742
2019-11-21

Reactor systems for recovering metals, and related methods

#55
20190123403
2019-04-25

Recycling apparatus for waste lithium battery

#56
20190070666
2019-03-07

Process for production of particulate ruthenium

#57
20190017145
2019-01-17

Methods, materials and techniques for precious metal recovery

#58
20180291477
2018-10-11

Recovery of valuable or toxic metals from silicon solar cells

#59
20180245178
2018-08-30

System and Method for Recovering Catalytic Precious Metal from Aqueous Galvanic Processing Solution

#60
20180230571
2018-08-16

Systems and methods of recovering precious metals and extracting copper from diverse substances

#61
20180016660
2018-01-18

Platinum recovery methods

#62
20170362681
2017-12-21

Methods for recovering metals from electronic waste, and related systems

#63
20170275733
2017-09-28

METHOD FOR PLATINUM RECOVERY FROM MATERIALS CONTAINING RHENIUM AND PLATINUM METALS

#64
20170114429
2017-04-27

Method for platinum recovery from materials containing rhenium and platinum metals

#65
20170079146
2017-03-16

METHOD FOR RECYCLING OF OBSOLETE PRINTED CIRCUIT BOARDS

#66
20170067135
2017-03-09

Methods for recovering metals from electronic waste, and related systems

#67
20170058379
2017-03-02

Metal recovery processes

#68
20160346816
2016-12-01

Safe unloading and disposal of ionic liquid catalyst contaminated spent solids

#69
20160222487
2016-08-04

RECOVERY OF METALS

#70
20160138128
2016-05-19

METHOD FOR BIOLEACHING A METAL PRESENT IN A MATERIAL

#71
20160122846
2016-05-05

SUSTAINABLE PROCESS FOR RECLAIMING PRECIOUS METALS AND BASE METALS FROM E-WASTE

#72
20160102408
2016-04-14

Metal stripping additive, composition containing the same, and method for stripping metal by using the composition

#73
20160095230
2016-03-31

Method for recycling of obsolete printed circuit boards

#74
20160076120
2016-03-17

Method for collecting silver ions and phosphoric acid in waste fluid

#75
20160053342
2016-02-25

Integrated recovery of metals from complex substrates

#76
20150322545
2015-11-12

Apparatus and method for stripping solder metals during the recycling of waste electrical and electronic equipment

#77
20150322540
2015-11-12

Apparatus and method for stripping solder metals during the recycling of waste electrical and electronic equipment

#78
20150197829
2015-07-16

COMPUTER GOLD RECOVERY KIT

#79
20150152520
2015-06-04

Method of recovering silver and paper from silver-coated paper film

#80
20150114182
2015-04-30

Gold recovery

#81
20150101455
2015-04-16

Method for recovery of nobel metals from long-chain hydrocarbons, tars, oils

#82
20140165786
2014-06-19

Method for the removal and recovery of metals and precious metals from substrates

#83
20130336857
2013-12-19

Sustainable process for reclaiming precious metals and base metals from e-waste

#84
20130330255
2013-12-12

Method for collection of ruthenium or ruthenium compound

#85
20130326850
2013-12-12

Burning-free and non-cyanide method for recycling waste printed circuit board

#86
20130276284
2013-10-24

Method for recycling of obsolete printed circuit boards

#87
20130160609
2013-06-27

METHOD FOR RECOVERING PLATINUM FROM AVIATION ENGINE COMPONENTS

#88
20120318681
2012-12-20

Complete non-cyanogens wet process for green recycling of waste printed circuit board

#89
20120274008
2012-11-01

OXYGEN TORCH RECLAMATION OF METALS WITH NITRIC ACID RECOVERY

#90
20120036962
2012-02-16

Surface-modified biomass, preparation method thereof, and method for recovering valuable metals using the same

#91
20110165041
2011-07-07

Processes for the recovery of ruthenium from materials containing ruthenium or ruthenium oxides or from ruthenium-containing noble metal ore concentrates

#92
20100314242
2010-12-16

Method for Recovering Gold, Silver, Copper and Iron from Plasma-Caused Slag Containing Valuable Metals

#93
20100252966
2010-10-07

PRECIOUS METAL RECOVERY DEVICE

#94
20100252078
2010-10-07

Apparatus for Recycling Noble Metals

#95
20100116093
2010-05-13

Method of recovering silver using anion-exchange resin

#96
20100059909
2010-03-11

Apparatus for Recycling Noble Metals

#97
20090191107
2009-07-30

PROCESSES FOR THE RECOVERY OF RUTHENIUM FROM MATERIALS CONTAINING RUTHENIUM ORRUTHENIUM OXIDES OR FROM RUTHENIUM-CONTAINING NOBLE METAL ORE CONCENTRATES

#98
20080196546
2008-08-21

Use of non-ionic surfactants in the production of metals

#99
20080128357
2008-06-05

Separation of platinum group metals

#100
20080115627
2008-05-22

Metal Extraction In Liquid Or Supercritical-Fluid Solvents

#101
20080110767
2008-05-15

PROCESS FOR ELECTROCHEMICAL DECOMPOSITION OF SUPERALLOYS

#102
20080064771
2008-03-13

Process for recycling fuel cell components containing precious metals

#103
20080038625
2008-02-14

Fast recycling process for ruthenium, gold and titanium coatings from hydrophilic PEM fuel cell bipolar plates

#104
20080025890
2008-01-31

Use of surfactants in the production of metal

#105
20070227903
2007-10-04

Precious Metal Recovery

#106
20070217976
2007-09-20

Recovery of gold from potassium iodide-iodine etching solution

#107
20070189941
2007-08-16

Kit For Recovery Of Metal

#108
20060276327
2006-12-07

Compositions for removing metal ions from aqueous process solutions and methods of use thereof

#109
20060060538
2006-03-23

Compositions for removing metal ions from aqueous process solutions and methods of use thereof

#110
20060037889
2006-02-23

Apparatus for reclamation of precious metals from circuit board scrap

#111
20050247909
2005-11-10

Process for reducing the passive layer from the surface of a metal

#112
20050218078
2005-10-06

Separation of platinum group metals

#113
20050061748
2005-03-24

Compositions for removing metal ions from aqueous process solutions and methods of use thereof

#114
20050020078
2005-01-27

Method of planarizing a surface

#115
18893145
2025-03-18

Separation process of metals copper anode slime based on oxidation potential modulation

#116
16200448
2019-10-08

Method of recovering materials bound to a metallic substrate using cryogenic cooling

#117
15005086
2020-11-03

System and method for recovering base and precious metals

#118
14874281
2016-05-24

Method of synthesizing silver nanoparticles from waste film