ClassID:

120469

C23C22/33 - 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 aqueous solutions using aqueous acidic solutions with pH less than 6 containing hexavalent chromium compounds containing also phosphates

Recent Application in this class:
#1
20220162759
2022-05-26

Coated metal, coating-forming treatment solution, and method for producing coated metal

#2
20220090226
2022-03-24

METHOD FOR PRODUCING GRAIN-ORIENTED ELECTRICAL STEEL SHEET

#3
20200325582
2020-10-15

PROCESS AND COMPOSITION FOR TREATING METAL SURFACES USING TRIVALENT CHROMIUM COMPOUNDS

#4
20190226093
2019-07-25

Coated metal, coating-forming treatment solution, and method for producing coated metal

#5
20180230565
2018-08-16

GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND MANUFACTURING METHOD THEREFOR

#6
20180154608
2018-06-07

Method for producing metal containing composite and metal containing composite formed by adhesion

#7
20180087158
2018-03-29

Insulation-coated oriented magnetic steel sheet and method for manufacturing same

#8
20180080127
2018-03-22

Insulating-coated oriented magnetic steel sheet and method for manufacturing same

#9
20170275730
2017-09-28

Hearth roll for continuous annealing furnaces, and method for manufacturing same

#10
20170226644
2017-08-10

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

#11
20160260531
2016-09-08

Grain-oriented electrical steel sheet having excellent magnetic characteristics and coating adhesion

#12
20150176135
2015-06-25

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

#13
20150007908
2015-01-08

Method of producing grain-oriented electrical steel sheet

#14
20140305903
2014-10-16

Method for manufacturing a bonded body of galvanized steel sheet and adherend

#15
20140251514
2014-09-11

Grain-oriented electrical steel sheet and method of producing the same

#16
20130189490
2013-07-25

Grain oriented electrical steel sheet

#17
20130136947
2013-05-30

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

#18
20110008644
2011-01-13

BONDED BODY OF GALVANIZED STEEL SHEET AND ADHEREND, AND MANUFACTURING METHOD THEREOF

#19
20100203327
2010-08-12

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

#20
20070128431
2007-06-07

Pre-coated metal sheet for slot-in drive cases