ClassID:

120450

C23C22/10 - 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 phosphates; Orthophosphates containing oxidants

Recent Application in this class:
#1
20230332296
2023-10-19

Process for coating onto galvanized surfaces

#2
20230332294
2023-10-19

PROCESS FOR IMPROVING CHARACTERISTICS OF GALVANIZED SURFACES

#3
20230160068
2023-05-25

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

#4
20200325582
2020-10-15

PROCESS AND COMPOSITION FOR TREATING METAL SURFACES USING TRIVALENT CHROMIUM COMPOUNDS

#5
20190360115
2019-11-28

METHOD FOR MANUFACTURING COPPER COMPOSITE ELECTRODE WITH A FLAKE STRUCTURE ON THE SURFACE

#6
20190186018
2019-06-20

Grain-oriented electrical steel sheet and method for producing grain-oriented electrical steel sheet

#7
20190127860
2019-05-02

Two-step sealing of anodized aluminum coatings

#8
20170338037
2017-11-23

Planar transformer components comprising electrophoretically deposited coating

#9
20140251503
2014-09-11

High temperature conversion coating on steel and iron substrates

#10
20120171501
2012-07-05

PROCESS FOR SURFACE TREATING MAGNESIUM ALLOY AND ARTICLE MADE WITH SAME

#11
20120064369
2012-03-15

Steel sheet for container use with excellent organic film performance and method of production of same

#12
20110217476
2011-09-08

CONVERSION LAYERS FOR SURFACES CONTAINING ZINC

#13
20110162556
2011-07-07

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

#14
20100159258
2010-06-24

Methods for passivating a metal substrate and related coated metal substrates

#15
20070267106
2007-11-22

Iron phosphating process that reduces laser scale resulting in improved paint adhesion

#16
20050022907
2005-02-03

Universal aqueous coating compositions for pretreating metal surfaces

#17
20050016634
2005-01-27

Process for pickling martensitic or ferritic stainless steel