C23C22/84 - CPC Classification Index

ClassID:

120511 ⎘

C23C22/84 - 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; After-treatment Dyeing

Recent Application in this class:

20240360563

2024-10-31

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

20200199757

2020-06-25

ANTI-CORROSION COATING METHOD

20200124769

2020-04-23

Low reflection articles and related systems and methods

20190085463

2019-03-21

CONTINUOUS COIL PRETREATMENT PROCESS

20190033490

2019-01-31

Low reflection articles and related systems and methods

20170283956

2017-10-05

Black Coupling Member for Vehicles, Having Excellent Corrosion Resistance and Black Appearance

20160186329

2016-06-30

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

20090032146

2009-02-05

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

20080254221

2008-10-16

Coating composition and methods of coating

#10

20060019108

2006-01-26

Method for producing an inorganic cover layer on the surface of a product and panel-shaped or strip-shaped product

#11

20050276989

2005-12-15

Coating composition and methods of coating