ClassID:

120563

C23C2222/10 - CPC Classification

Classification description:

Aspects relating to chemical surface treatment of metallic material by reaction of the surface with a reactive medium Use of solutions containing trivalent chromium but free of hexavalent chromium

Recent Application in this class:
#1
20260152858
2026-06-04

COMPOSITIONS, SYSTEMS AND METHODS FOR TREATING A SUBSTRATE

#2
20260055512
2026-02-26

SYSTEMS AND METHODS FOR TREATING A METAL SUBSTRATE

#3
20260048896
2026-02-19

PRETREATED ALUMINUM ALLOY TAB STOCK

#4
20250230553
2025-07-17

COMPOSITION FOR SURFACE TREATMENT OF MG-CONTAINING GALVANIZED STEEL SHEET AND MG-CONTAINING GALVANIZED STEEL SHEET SURFACE-TREATED USING SAME

#5
20250075331
2025-03-06

Dyed Trivalent Chromium Conversion Coatings and Methods of Using Same

#6
20250051591
2025-02-13

ALUMINUM HEAT EXCHANGER

#7
20250003077
2025-01-02

AQUEOUS SURFACE TREATMENT AGENT AND SURFACE-TREATED METAL

#8
20240360563
2024-10-31

HEXAVALENT CHROMIUM-FREE WATER-BASED SURFACE TREATMENT SOLUTION, SURFACE-TREATED METAL, AND SURFACE TREATMENT METHOD

#9
20240254631
2024-08-01

METHOD FOR COATING ZINC DIE-CAST PARTS, MULTI-LAYERED COATING FOR THE PROTECTION OF ZINC DIE-CAST PARTS, AND COATED ZINC DIE-CAST PART

#10
20240068107
2024-02-29

Surface-treated steel sheet and method of producing the same

#11
20240052496
2024-02-15

COMPOSITION FOR SURFACE TREATMENT OF STEEL SHEET AND STEEL SHEET USING THE SAME

#12
20240035165
2024-02-01

METHOD FOR DEPOSITING A CHROMIUM-COMPRISING PASSIVATION LAYER ON A ZINC-COMPRISING COATING

#13
20240017356
2024-01-18

Process for protecting a part made of an aluminum-based alloy containing copper

#14
20230374665
2023-11-23

CR(III) BASED DRY-IN-PLACE COATING COMPOSITION FOR ZINC COATED STEEL

#15
20230349048
2023-11-02

IMPROVED CR(III)-BASED PASSIVATION FOR ZINC-ALUMINUM COATED STEEL

#16
20230332296
2023-10-19

Process for coating onto galvanized surfaces

#17
20230332294
2023-10-19

PROCESS FOR IMPROVING CHARACTERISTICS OF GALVANIZED SURFACES

#18
20230304161
2023-09-28

APPLICATION OF TYPE II CHEMICAL CONVERSION COATINGS (CCCS) USING FOAMING AGENTS

#19
20230304160
2023-09-28

CHEMICAL CONVERSION TREATMENT SOLUTION, CHEMICAL CONVERSION TREATMENT METHOD IN WHICH SAME IS USED, AND CHEMICAL CONVERSION COATING

#20
20230160068
2023-05-25

METHOD FOR FORMING A BLACK-PASSIVATION LAYER ON A ZINC-IRON ALLOY AND BLACK- PASSIVATION COMPOSITION

#21
20230101282
2023-03-30

ANTI-CORROSION COATINGS

#22
20220411934
2022-12-29

PASSIVATION COMPOSITION AND METHOD FOR DEPOSITING A CHROMIUM-COMPRISING PASSIVATION LAYER ON A ZINC OR ZINC-NICKEL COATED SUBSTRATE

#23
20220396884
2022-12-15

Trivalent chromium chemical conversion treatment liquid for zinc or zinc alloy base and chemical conversion treatment method using the same

#24
20220261646
2022-08-18

Solution composition for steel sheet surface treatment, zinc-based plated steel sheet surface-treated with same, and manufacturing method therefor

#25
20210388504
2021-12-16

Surface treatment solution composition containing trivalent chromium and inorganic compound, and method for manufacturing hot dip galvanized steel sheet surface-treated using same

#26
20210348280
2021-11-11

Composition for surface treatment of Mg-containing galvanized steel sheet and Mg-containing galvanized steel sheet surface-treated using same

#27
20210348278
2021-11-11

Solution based corrosion inhibitors for aluminum alloy thermal spray coatings

#28
20210130961
2021-05-06

High-design sliding member

#29
20210071304
2021-03-11

Surface Treatment Agent, and Aluminum or Aluminum Alloy Material Having Surface Treatment Coating and Method of Producing the Same

#30
20210040621
2021-02-11

Systems and Methods for Treating a Metal Substrate

#31
20210025662
2021-01-28

CORROSION BARRIERS FOR HEAT EXCHANGERS

#32
20200362461
2020-11-19

Metallic material surface treatment agent, metallic material having surface treatment coating, and manufacturing method therefor

#33
20200325582
2020-10-15

PROCESS AND COMPOSITION FOR TREATING METAL SURFACES USING TRIVALENT CHROMIUM COMPOUNDS

#34
20200291527
2020-09-17

Solution composition containing trivalent chromium for surface treatment of steel sheet, galvanized steel sheet surface—treated with same, and method for manufacturing galvanized

#35
20200255947
2020-08-13

Surface activated polymers

#36
20200199757
2020-06-25

ANTI-CORROSION COATING METHOD

#37
20200141005
2020-05-07

Dyed trivalent chromium conversion coatings and methods of using same

#38
20200080203
2020-03-12

Formulation for the etching of polymer materials prior to coating of the materials

#39
20200079963
2020-03-12

Passive coatings for bulk aluminum and powder pigments

#40
20200072405
2020-03-05

Threaded connection for oil country tubular goods and method for producing threaded connection for oil country tubular goods

#41
20200071843
2020-03-05

Ternary zinc-nickel-iron alloys and alkaline electrolytes or plating such alloys

#42
20200063284
2020-02-27

Sealing process for an anodized aluminum-alloy surface

#43
20200040464
2020-02-06

AQUEOUS SOLUTION AND METHOD FOR IMPROVING CORROSION RESISTANCE OF A CR(III) CONVERSION COATING AND MODIFIED CR(III) CONVERSION COATING

#44
20200040461
2020-02-06

CHROMATING METHOD AND COMPONENT OBTAINED BY THIS METHOD

#45
20190382902
2019-12-19

pH Stable Trivalent Chromium Coating Solutions

#46
20190330744
2019-10-31

Process for the manufacturing of a steel strip for packaging and associated equipment

#47
20190264333
2019-08-29

Solution composition for steel sheet surface treatment, zinc-based plated steel sheet surface-treated with same, and manufacturing method therefor

#48
20190233943
2019-08-01

COATED SUBSTRATE HAVING CORROSION RESISTANT COATING

#49
20190169752
2019-06-06

Systems and Methods for Treating a Metal Substrate

#50
20190145009
2019-05-16

CONVERSION COATINGS FOR METAL SURFACES

#51
20190136383
2019-05-09

Trivalent chromium chemical conversion liquid for zinc or zinc alloy bases and chemical conversion coating film

#52
20190136381
2019-05-09

Formulation for the etching of polymer materials prior to coating of the materials

#53
20190127860
2019-05-02

Two-step sealing of anodized aluminum coatings

#54
20190085462
2019-03-21

Trivalent chromium-containing composition for aluminum and aluminum alloys

#55
20190078214
2019-03-14

TRIVALENT CHROMIUM CHEMICAL CONVERSION TREATMENT LIQUID FOR ZINC OR ZINC ALLOY BASE AND CHEMICAL CONVERSION TREATMENT METHOD USING THE SAME

#56
20190032224
2019-01-31

SUPPRESSION OF PHOSPHATE DRAGGING RESULTING FROM THE PLANT DESIGN IN A DIP COATING PROCESS SEQUENCE

#57
20180327926
2018-11-15

Sealing process for an anodized aluminum-alloy surface

#58
20180327909
2018-11-15

pH stable trivalent chromium coating solutions

#59
20180216234
2018-08-02

Dyed trivalent chromium conversion coatings and methods of using same

#60
20180187313
2018-07-05

Surface-treated steel sheet for fuel tanks

#61
20180172197
2018-06-21

THREADED TUBULAR ELEMENT PROVIDED WITH A METALLIC ANTI-CORROSION AND ANTI-GALLING COATING

#62
20180171261
2018-06-21

Threaded tubular connection provided with a metallic coating on the threading and on the sealing surface

#63
20180142104
2018-05-24

Surface treatment composition

#64
20170314137
2017-11-02

PROCESS FOR COATING METALLIC SURFACES WITH A PASSIVATING AGENT, THE PASSIVATING AGENT AND ITS USE

#65
20170292193
2017-10-12

Method for making corrosion resistant coating

#66
20170261148
2017-09-14

METAL CONNECTOR OR ADAPTOR FOR HYDRAULIC OR OIL DYNAMIC APPLICATION AT HIGH PRESSURE AND RELATIVE GALVANIC TREATMENT FOR CORROSION PROTECTION

#67
20170253976
2017-09-07

METHOD FOR MONITORING A PART VIA COLORIMETRY

#68
20170226644
2017-08-10

Corrosion-resistant trivalent-chromium chemical conversion coating and solution for trivalent-chromium chemical treatment

#69
20170121540
2017-05-04

Friction modifier for top coating agent for trivalent chromium chemical conversion coating film or chromium-free chemical conversion coating film, and top coating agent including same

#70
20170107626
2017-04-20

Process for the manufacturing of a steel strip for packaging and associated equipment

#71
20170009363
2017-01-12

Reactive-type chemical conversion treatment composition and production method of member with chemical conversion coated surface

#72
20160214139
2016-07-28

Black coating film-forming vehicle component and/or fastening component, and manufacturing method thereof

#73
20160208391
2016-07-21

Treatment liquid for trivalent chromium conversion coating and treatment method of metal substrate

#74
20160208390
2016-07-21

Treatment liquid for black trivalent chromium conversion coating, trivalent chromium-containing water-soluble liquid for finishing treatment, and treatment method of metal substrate

#75
20160208115
2016-07-21

FRICTION MODIFIER FOR TOP COATING AGENT FOR TRIVALENT CHROMIUM CHEMICAL CONVERSION COATING FILM OR CHROMIUM-FREE CHEMICAL CONVERSION COATING FILM, AND TOP COATING AGENT INCLUDING SAME

#76
20160186329
2016-06-30

Black coupling member for vehicles, having excellent corrosion resistance and black appearance

#77
20160102209
2016-04-14

Process of protecting metal substrates with corrosion-resistant compositions

#78
20160032112
2016-02-04

Alkaline cleaning compositions for metal substrates

#79
20160014929
2016-01-14

Aluminum heat exchanger

#80
20160002804
2016-01-07

Process for corrosion protection of iron containing materials

#81
20150322575
2015-11-12

Trivalent chromium passivation and pretreatment composition and method for zinc-containing metals

#82
20150225856
2015-08-13

Method for the manufacture of a substrate provided with a chromium VI-free and cobalt-free passivation

#83
20150135988
2015-05-21

Trivalent chromium-conversion processing solution containing aluminum-modified colloidal silica

#84
20150096461
2015-04-09

Method for regenerating solution for nitric acid activation treatment of zinc-plated metal member surface, and regeneration treatment apparatus using the same

#85
20150056427
2015-02-26

Removable mask for coating a substrate

#86
20150034490
2015-02-05

Multi-layer protective coating for an aluminum heat exchanger

#87
20150020925
2015-01-22

Method for the surface treatment of parts made of an aluminum or magnesium alloy

#88
20140272441
2014-09-18

Trivalent chromium-containing composition for aluminum and aluminum alloys

#89
20140130941
2014-05-15

Aqueous acidic composition for forming chromium-containing chemical conversion coating on iron-based member, and iron-based member having chemical conversion coating formed using the composition

#90
20140120357
2014-05-01

Composition for the local application of chemical conversion layers

#91
20140084221
2014-03-27

Coated aluminum alloy pigments and corrosion-resistant coatings

#92
20140050855
2014-02-20

Process and composition for treating metal surfaces using trivalent chromium compounds

#93
20140017514
2014-01-16

Finishing agent for trivalent chromium chemical conversion coating film, and method for finishing black trivalent chromium chemical conversion coating film

#94
20140004380
2014-01-02

Method for producing a grain-orientated electric strip

#95
20130177709
2013-07-11

Finishing agent for chemical conversion coating and method for producing same

#96
20130136947
2013-05-30

DRY-IN-PLACE CORROSION-RESISTANT COATING FOR ZINC OR ZINC-ALLOY COATED SUBSTRATES

#97
20130078382
2013-03-28

Process for forming corrosion protection layers on metal surfaces

#98
20130040164
2013-02-14

Trivalent Chromium Conversion Coating Pre-Coating Treatment

#99
20130011688
2013-01-10

Corrosion Resistant Metal Coating and Method of Making Same

#100
20120204762
2012-08-16

Aqueous silane systems for bare corrosion protection and corrosion protection of metals

#101
20120199787
2012-08-09

AQUEOUS SOLUTION OF CHROMIUM SALT AND METHOD FOR PRODUCING SAME

#102
20120097295
2012-04-26

HALOGEN-FREE TRIVALENT CHROMIUM CONVERSION COATING

#103
20120091398
2012-04-19

Anti-corrosive treatment for surfaces made of zinc and zinc alloys

#104
20120061249
2012-03-15

Method for making and using chromium III salts

#105
20120055371
2012-03-08

Method for making and using chromium III salts

#106
20120052304
2012-03-01

Hydration inhibitor coating for adhesive bonds

#107
20120009340
2012-01-12

METHOD FOR PRODUCING DEFORMABLE CORROSION PROTECTION LAYERS ON METAL SURFACES

#108
20110300406
2011-12-08

PAINTED METAL PARTS WITH NON-HEXAVALENT CHROMIUM CHEMICAL CONVERSION COATING AND PROCESS

#109
20110293841
2011-12-01

Process and composition for treating metal surfaces

#110
20110247728
2011-10-13

Halogen-free trivalent chromium conversion coating

#111
20110217476
2011-09-08

CONVERSION LAYERS FOR SURFACES CONTAINING ZINC

#112
20110168299
2011-07-14

PROCESS FOR PRODUCING AN AQUEOUS SOLUTION CONTAINING A SOURCE OF CHROMIUM (III)

#113
20110168051
2011-07-14

Chromium (III) carbonate and process for producing the same

#114
20110162974
2011-07-07

METHOD FOR MANUFACTURING CHROMIUM HYDROXIDE

#115
20110162556
2011-07-07

CHROMIUM (III)-CONTAINING AQUEOUS SOLUTION AND PROCESS FOR PRODUCING THE SAME

#116
20110159315
2011-06-30

Finishing Agent and Member Having an Overcoat Formed from the Finishing Agent

#117
20110155286
2011-06-30

Composition for chemical conversion treatment and method of manufacturing a member having a black film formed from the composition

#118
20110151126
2011-06-23

TRIVALENT CHROMIUM CONVERSION COATING

#119
20110132498
2011-06-09

Composition for Chemical Conversion Treatment and Member Having a Chemical Conversion Film Formed by the Treatment

#120
20110100513
2011-05-05

Trivalent chromium passivation and pretreatment composition and method for zinc-containing metals

#121
20110070429
2011-03-24

Corrosion-resistant coating for active metals

#122
20110033629
2011-02-10

Method for the local application of chemical conversion layers

#123
20110017352
2011-01-27

Continuous method for treating the surface of metal strips

#124
20110008645
2011-01-13

PROCESS FOR COATING METALLIC SURFACES WITH A PASSIVATING AGENT, THE PASSIVATING AGENT AND ITS USE

#125
20100300891
2010-12-02

Method for making and using chromium III salts

#126
20100239773
2010-09-23

Aqueous treating solution for Sn-based plated steel sheet excellent in corrosion resistance and paint adhesion, and production method of surface-treated steel sheet

#127
20100230009
2010-09-16

Processing solution for forming hexavalent chromium free and corrosion resistant conversion film on zinc or zinc alloy plating layers, hexavalent chromium free and corrosion resistant conversion film, method for forming the same

#128
20100212542
2010-08-26

Composition for chemical conversion treatment and member having a chemical conversion coating formed by the treatment

#129
20100209719
2010-08-19

RESIDUE-FREE, COAT-FORMING, AQUEOUS SEALING SYSTEM FOR METAL SURFACES, BASED ON SILANE

#130
20100203327
2010-08-12

Corrosion-resistant trivalent-chromium chemical conversion coating and solution for trivalent-chromium chemical treatment

#131
20100203237
2010-08-12

CORROSION PROTECTIVE AND ELECTRICAL CONDUCTIVITY COMPOSITION FREE OF INORGANIC SOLID PARTICLES AND PROCESS FOR THE SURFACE TREATMENT OF METALLIC SHEET

#132
20100180793
2010-07-22

Anti-corrosion treatment for conversion layers

#133
20100160102
2010-06-24

CHROMIUM(VI)-FREE COMPOSITION FOR PROTECTION OF A GALVANIZED METAL SURFACE AGAINST CORROSION, PROCESS FOR PRODUCING IT AND PULLEY

#134
20100133113
2010-06-03

Chromium(VI)-free black passivation of surfaces containing zinc

#135
20100132843
2010-06-03

Trivalent chromium-containing composition for use in corrosion resistant coatings on metal surfaces

#136
20100095867
2010-04-22

Aqueous solution of chromium salt and method for producing same

#137
20100092121
2010-04-15

Retainer for rolling bearing and rolling bearing

#138
20100032060
2010-02-11

Process for preparing chromium conversion coatings for magnesium alloys

#139
20100028708
2010-02-04

Passivated metal core substrate and process for preparing the same

#140
20090309481
2009-12-17

Field emission device and method for fabricating cathode emitter and zinc oxide anode

#141
20090290953
2009-11-26

Screw and screw fastening structure

#142
20090280253
2009-11-12

Process and composition for treating metal surfaces using trivalent chromium compounds

#143
20090269607
2009-10-29

Cast product having aluminum-based film and process for producing the same

#144
20090266450
2009-10-29

Trichrome passivates for treating galvanized steel

#145
20090242081
2009-10-01

Aluminum Treatment Composition

#146
20090178734
2009-07-16

Processing solution for forming hexavalent chromium free, black conversion film on zinc or zinc alloy plating layers, and method for forming hexavalent chromium free, black conversion film on zinc or zinc alloy plating layers

#147
20090060828
2009-03-05

Fluorine extraction process for fluoro-refractory coatings and articles manufactured according to said process

#148
20090050238
2009-02-26

Treatment solution for forming of black trivalent chromium chemical coating on zinc or zinc alloy and method of forming black trivalent chromium chemical coating on zinc or zinc alloy

#149
20090032146
2009-02-05

Aqueous reaction solution and method of passivating workpieces having zinc or zinc alloy surfaces and use of a heteroaromatic compound

#150
20090032145
2009-02-05

Method of forming a multilayer, corrosion-resistant finish

#151
20090020185
2009-01-22

Aqueous treating solution for forming black trivalent-chromium chemical conversion coating on zinc or zinc alloy and method of forming black trivalent-chromium chemical conversion coating

#152
20090014094
2009-01-15

Methods for Reducing Hexavalent Chromium in Trivalent Chromate Conversion Coatings

#153
20080286477
2008-11-20

Ball stud

#154
20080210341
2008-09-04

Treatment solution for forming black hexavalent chromium-free chemical conversion coating film on zinc or zinc alloy

#155
20080160328
2008-07-03

Halogen-free trivalent chromium conversion coating

#156
20080009166
2008-01-10

Electrically conductive connector housing part

#157
20070243397
2007-10-18

Chromium(VI)-free, aqueous acidic chromium(III) conversion solutions

#158
20070196632
2007-08-23

Antifriction coatings, methods of producing such coatings and articles including such coatings

#159
20070187001
2007-08-16

Composition and processes of a dry-in-place trivalent chromium corrosion-resistant coating for use on metal surfaces

#160
20070147719
2007-06-28

Rolling bearing

#161
20070119715
2007-05-31

Corrosion Resistant Wire Products and Method of Making Same

#162
20070089808
2007-04-26

Liquid trivalent chromate for aluminium or aluminium alloy and method for forming corrosion-resistant film over surface of aluminium or aluminium alloy by using same

#163
20070086938
2007-04-19

Aqueous solution of chromium salt and method for producing same

#164
20070023104
2007-02-01

Agent for reducing conversion film overall friction coefficient for trivalent chromate treating solution, trivalent chromate treating solution and method for production thereof, and trivalent chromate conversion film reduced in overall friction coefficient and method for production thereof

#165
20060286399
2006-12-21

METAL PIECES AND ARTICLES HAVING IMPROVED CORROSION RESISTANCE

#166
20060266438
2006-11-30

TRIVALENT CHROMIUM CONVERSION COATING AND METHOD OF APPLICATION THEREOF

#167
20060257680
2006-11-16

Copper foil for printed circuit board, method for fabricating same, and trivalent chromium conversion treatment solution used for fabricating same

#168
20060240191
2006-10-26

Composition and process for preparing chromium-zirconium coatings on metal substrates

#169
20060237098
2006-10-26

Composition and process for preparing protective coatings on metal substrates

#170
20060228575
2006-10-12

Corrosion resistant article and method of production thereof

#171
20060180247
2006-08-17

Process for preparing chromium conversion coatings for iron and iron alloys

#172
20060110619
2006-05-25

Corrosion-resistant a1-based structural member and method for manufacture thereof

#173
20060099439
2006-05-11

Metal pieces and articles having improved corrosion resistance

#174
20060083942
2006-04-20

Conversion layer for bases made of zinc or zinc alloys

#175
20060054248
2006-03-16

Colored trivalent chromate coating for zinc

#176
20050236060
2005-10-27

Multilayer plated fuel line parts for automobile

#177
20050194574
2005-09-08

Aluminum elements and processes for the preparation of the same and chemical agents therefor

#178
20050178475
2005-08-18

Corrosion resistant trivalent chromium phosphated chemical conversion coatings

#179
20050127808
2005-06-16

Spark plug

#180
20050109426
2005-05-26

Processing solution for forming hexavalent chromium free, black conversion film on zinc or zinc alloy plating layers, and method for forming hexavalent chromium free, black conversion film on zinc or zinc alloy plating layers

#181
20050103403
2005-05-19

Processing solution for forming hexavalent chromium free and corrosion resistant conversion film on zinc or zinc alloy plating layers, hexavalent chromium free and corrosion resistant conversion film, method for forming the same

#182
20050103229
2005-05-19

Aqueous agent for treating substrate, method for treating substrate and treated substrate

#183
20050058848
2005-03-17

Zinc-diffused alloy coating for corrosion/heat protection