C23C22/70 - CPC Classification Index

ClassID:

120501 ⎘

C23C22/70 - 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 melts

Sub-classes:

C23C22/72 » Treatment of iron or alloys based thereon 8

Recent Application in this class:

20250178910

2025-06-05

METAL SILICIDE AND METHOD FOR PRODUCING SAME, ALLOY MATERIAL AND METHOD FOR PRODUCING SAME, HEATING ELEMENT, AND ELECTRIC RESISTOR

20240052492

2024-02-15

LITHIUM LANTHANUM ZIRCONATE THIN FILMS

20220186380

2022-06-16

Lithium lanthanum zirconate thin films

20200131643

2020-04-30

Lithium lanthanum zirconate thin films

20200010958

2020-01-09

METHODS AND MATERIALS SYSTEMS FOR ENHANCING CORROSION RESISTANCE OF SOLID MATERIALS AND CORROSION RESISTANT DEVICES MADE THEREFROM

20180347052

2018-12-06

HIGH MOLECULAR MASS, SATURATED HYDROCARBON ACID BASED CHEMICAL CONVERSION COATING COMPOSITION

20150218707

2015-08-06

METHOD FOR PREPARING ALUMINUM MATRIX COMPOSITE USING NO PRESSURE INFILTRATION

20140190783

2014-07-10

Method for producing a friction element

20130195671

2013-08-01

Hollow airfoil construction utilizing functionally graded materials

#10

20120160629

2012-06-28

Method for producing a friction element

#11

20060003084

2006-01-05

Protection of metal-based substrates with hematite-containing coatings

#12

20050042440

2005-02-24

Magnesium workpiece and method for generation of an anti-corrosion coating on a magnesium workpiece