ClassID:

120444

C23C22/03 - 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 using non-aqueous solutions containing phosphorus compounds

Recent Application in this class:
#1
20260035802
2026-02-05

METHOD OF PRE-TREATING METALLIC SUBSTRATES

#2
20250075332
2025-03-06

SANITARY EQUIPMENT PART AND METHOD OF PRODUCING THE SAME

#3
20240175139
2024-05-30

PRETREATMENT METHOD OF ALUMINUM ALLOY COIL

#4
20240047107
2024-02-08

Non-oriented electrical steel sheet and method for manufacturing same

#5
20240043955
2024-02-08

STEEL SHEET WITH EXCELLENT PHOSPHATABILITY AND MANUFACTURING METHOD THEREFOR

#6
20230395291
2023-12-07

Non-oriented electrical steel sheet and method for producing same

#7
20230250536
2023-08-10

MODIFICATION OF METALLIC SURFACES WITH PHOSPHONIC ACIDS

#8
20230227980
2023-07-20

ALUMINUM ALLOY PRETREATMENT WITH PHOSPHORUS- CONTAINING ORGANIC ACIDS FOR SURFACE MODIFICATION

#9
20210277522
2021-09-09

Sanitary equipment part and method of producing the same

#10
20210207349
2021-07-08

Faucet fitting

#11
20200208235
2020-07-02

Grain-oriented electrical steel sheet and method for producing same

#12
20200071834
2020-03-05

COATING METHOD OF APATITE USING LASER

#13
20190376188
2019-12-12

Corrosion and mar resistance of steel components

#14
20190048204
2019-02-14

Compositions comprising bisphosphonic compounds dissolved in a fluorinated solvent, and use thereof for covering the surface of a part

#15
20180362876
2018-12-20

Anticorrosive agent and terminal fitted electric wire

#16
20180187324
2018-07-05

Steel sheet for containers, and method for producing steel sheet for containers

#17
20180119287
2018-05-03

Surface treatment of metal substrates

#18
20160340787
2016-11-24

Coatings for Metal Surfaces

#19
20150090369
2015-04-02

Corrosion prevention of magnesium surfaces via surface conversion treatments using ionic liquids

#20
20150064445
2015-03-05

Activating rinse and method for treating a substrate

#21
20140261896
2014-09-18

Method for conversion treating surface of magnesium alloy workpiece

#22
20140134398
2014-05-15

Coatings For Metal Surfaces

#23
20130287955
2013-10-31

Composition for increasing the lipophobicity of a watch-making component

#24
20110088729
2011-04-21

Surface passivation technique for reduction of fouling

#25
20110041912
2011-02-24

Phosphonium ionic liquids and coatings made therefrom

#26
20100319572
2010-12-23

CORROSION PROTECTION OF BRONZES

#27
20100151263
2010-06-17

Metallic surface enhancement

#28
20100080957
2010-04-01

Surface Coating

#29
20100004405
2010-01-07

Organic compound and process for inhibiting corrosion on metals

#30
20090050143
2009-02-26

MEDICINAL FORMULATION CONTAINER WITH A TREATED METAL SURFACE

#31
20080314283
2008-12-25

Corrosion protection of bronzes

#32
20080302267
2008-12-11

COMPOSITIONS AND PROCESSES FOR DEPOSITION OF METAL IONS ONTO SURFACES OF CONDUCTIVE SUBSTRATES

#33
20080261025
2008-10-23

Metallic surface enhancement

#34
20070298277
2007-12-27

METAL PHOSPHATE COATING FOR OXIDATION RESISTANCE

#35
20070131141
2007-06-14

Surface processing agent for tin or tin alloy material

#36
20070112353
2007-05-17

Deposition of discrete nanoparticles on an implant surface

#37
20070110890
2007-05-17

Deposition of discrete nanoparticles on an implant surface

#38
20070092640
2007-04-26

Process for applying organophosphorus-based layers on substrates

#39
20070023115
2007-02-01

Method of making metal surfaces wettable