ClassID:

120505

C23C22/76 - CPC Classification

Classification description:

Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process Applying the liquid by spraying

Recent Application in this class:
#1
20250389003
2025-12-25

STEEL STRIP AND MANUFACTURING METHOD THEREFOR

#2
20250354269
2025-11-20

MULTI-STAGE TREATMENT FOR ACTIVATED ZINC PHOSPHATING OF METALLIC COMPONENTS

#3
20250109452
2025-04-03

COATING LIQUID FOR FORMING INSULATION COATING FOR GRAIN-ORIENTED ELECTRICAL STEEL SHEETS, GRAIN-ORIENTED ELECTRICAL STEEL SHEET, AND METHOD FOR PRODUCING GRAIN-ORIENTED ELECTRICAL STEEL SHEET

#4
20240209513
2024-06-27

PRE-TREATING ALUMINUM SURFACES WITH ZIRCONIUM- AND MOLYBDENUM-CONTAINING COMPOSITIONS

#5
20240060187
2024-02-22

CONTINUOUS COIL PRETREATMENT PROCESS

#6
20240026545
2024-01-25

METALLIC SUBSTRATE TREATMENT METHODS AND ARTICLES COMPRISING A PHOSPHONATE FUNCTIONALIZED LAYER

#7
20240018662
2024-01-18

CHROMIUM(VI)-FREE COATING AGENT FOR METALS

#8
20230332296
2023-10-19

Process for coating onto galvanized surfaces

#9
20230321609
2023-10-12

Metal Coated Substrates for Filters

#10
20220305444
2022-09-29

Anti-microbial metal coatings for filters

#11
20220205107
2022-06-30

SYSTEMS, METHODS, AND APPARATUS FOR PRELITHIATION THROUGH LIQUID ALKALI METAL COMPOSITION SPRAY APPLICATION

#12
20220195604
2022-06-23

PHOSPHATE COATING WHICH CAN BE SUBSTANTIALLY FREE OF HEXAVALENT CHROMIUM AND METHODS OF MAKING THE SAME

#13
20220145471
2022-05-12

Metallic substrate treatment methods and articles comprising a phosphonate functionalized layer

#14
20210381072
2021-12-09

Coating liquid for forming insulation coating for grain-oriented electrical steel sheets, grain-oriented electrical steel sheet, and method for producing grain-oriented electrical steel sheet

#15
20210348278
2021-11-11

Solution based corrosion inhibitors for aluminum alloy thermal spray coatings

#16
20210164106
2021-06-03

Combined treatment method for improving corrosion resistance of metal component in chlorine-containing solution

#17
20210079230
2021-03-18

INORGANIC PHOSPHATE CERAMICS AND COATINGS

#18
20200109296
2020-04-09

INORGANIC PHOSPHATE CERAMICS AND COATINGS

#19
20190301023
2019-10-03

Reaction products of catechol compounds and functionalized co-reactant compounds for metal pretreatment applications

#20
20190292665
2019-09-26

Use of preformed reaction products of catechol compounds and functionalized co-reactant compounds to reduce oxidation of bare metal surfaces

#21
20190284700
2019-09-19

Method for corrosion-protective and cleaning pretreatment of metallic components

#22
20190233944
2019-08-01

Surface treatment apparatus and surface treatment method

#23
20190119817
2019-04-25

ALUMINUM MATERIAL SURFACE TREATMENT METHOD, SURFACE TREATMENT APPARATUS, AND TREATED SURFACE ALUMINUM MATERIAL

#24
20190071781
2019-03-07

COATING FORMATION COMPOSITION AND METAL MATERIAL TREATMENT METHOD

#25
20190040531
2019-02-07

SURFACE TREATMENT AGENT, METHOD FOR FORMING SURFACE TREATMENT COATING, AND ALUMINUM MATERIAL OR ALUMINUM ALLOY MATERIAL HAVING SURFACE TREATMENT COATING THEREON/OVER

#26
20180371622
2018-12-27

Inorganic non-chrome aqueous treatment composition and process for coating metal surfaces

#27
20180347051
2018-12-06

Chromium-free surface-treated tinplate, production method and surface treating agent therefor

#28
20180274103
2018-09-27

CORROSION PROTECTION VIA NANOMATERIALS

#29
20180265986
2018-09-20

Systems and methods for modifying surfaces of substrates

#30
20180237919
2018-08-23

PRE-TREATING ALUMINUM SURFACES WITH ZIRCONIUM-AND MOLYBDENUM-CONTAINING COMPOSITIONS

#31
20180079175
2018-03-22

COATED STEEL PARTS AND PRODUCTION METHODS THEREOF

#32
20170335465
2017-11-23

METHODS AND COMPOSITIONS FOR COATING METAL SURFACES

#33
20170309477
2017-10-26

Method for forming a gradient thin film by spray pyrolysis

#34
20170171964
2017-06-15

Security mesh and method of making

#35
20170016119
2017-01-19

Two-stage pre-treatment of aluminum comprising pickling and passivation

#36
20160319440
2016-11-03

Continuous coil pretreatment process

#37
20160177106
2016-06-23

Hydrogen-bonding surfaces for ice mitigation

#38
20160175957
2016-06-23

Method and apparatus for manufacturing aluminum product

#39
20150376418
2015-12-31

Inorganic phosphate ceramics and coatings

#40
20150353773
2015-12-10

METHOD FOR PRODUCING A METALLIC OR NON-METALLIC METAL-COATED SUBSTRATE, A METALLIC OR NON-METALLIC METAL-COATED SUBSTRATE, AND USE OF SAID SUBSTRATE

#41
20150322572
2015-11-12

Method for passivating a metal surface

#42
20150236319
2015-08-20

Stainless separator for fuel cell and method of manufacturing the same

#43
20150218705
2015-08-06

Conversion coating composition, surface treated steel sheet, and method for manufacturing the same

#44
20150176135
2015-06-25

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

#45
20150125602
2015-05-07

Methods of Treatment of Ferrous Metal Surfaces and Ferrous Alloy Surfaces

#46
20150024222
2015-01-22

METHOD FOR PASSIVATION OF STRIP BLACK PLATE

#47
20140356617
2014-12-04

Rheology modified pretreatment compositions and associated methods of use

#48
20140308455
2014-10-16

Method for finishing a tubular threaded member with a dry protection coating

#49
20130084466
2013-04-04

Rheology modified pretreatment compositions and associated methods of use

#50
20120070674
2012-03-22

Method for coating metal surfaces in a multi-step method

#51
20110287188
2011-11-24

Processes for applying a conversion coating with conductive additive(s) and the resultant coated articles

#52
20110143910
2011-06-16

Inorganic phosphate compositions and methods

#53
20100201119
2010-08-12

TUBULAR THREADED MEMBER WITH DRY PROTECTION COATING

#54
20090269649
2009-10-29

Stainless separator for fuel cell and method of manufacturing the same

#55
20090061184
2009-03-05

Processes for Applying a Conversion Coating with Conductive Additive(S) and the Resultant Coated Articles

#56
20080000383
2008-01-03

Anticorrosive coating compositions

#57
20070065589
2007-03-22

METHOD FOR THE PASSIVATION OF THE SURFACE OF COATED METAL BANDS AND DEVICE FOR THE APPLICATION OF THE PASSIVE LAYER ON A METAL COATED STEEL BAND

#58
20050153248
2005-07-14

Method for fabricating a molding core

#59
20050147760
2005-07-07

Method for surface treatment of metal pipes