ClassID:

119934

C23C8/40 - CPC Classification

Classification description:

Solid state diffusion of only non-metal elements into metallic material surfaces ; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using liquids, e.g. salt baths, liquid suspensions

Sub-classes:
Recent Application in this class:
#1
20210292881
2021-09-23

Erosive wear and corrosion resistant coatings including metal carbide, metal boride, metal nitride, and corresponding methods

#2
20210205940
2021-07-08

Methods of modifying material flow mode during machining and products formed thereby

#3
20210054469
2021-02-25

Surface hardening method using post heat treatment of aluminum alloy oxide layer

#4
20200199731
2020-06-25

Metal material hydrophobic surface treatment methods

#5
20190276924
2019-09-12

METHOD FOR INSPECTING AND PROCESSING HIGH ALLOY STEELS

#6
20190249941
2019-08-15

Process for applying graphene layer to metallic firearm elements

#7
20180363125
2018-12-20

METHOD OF FORMING HIGH SURFACE AREA METAL OXIDE NANOSTRUCTURES AND APPLICATIONS OF SAME

#8
20170218497
2017-08-03

COLORED COATED METAL SHEET AND EXTERIOR BUILDING MATERIAL

#9
20160360623
2016-12-08

Methods of treating metal surfaces and devices formed thereby

#10
20160115579
2016-04-28

Method for inspecting and processing high hardness alloy steels

#11
20150284836
2015-10-08

Method of making corrosion resistant and glossy appearance coating for light metal workpiece

#12
20150090368
2015-04-02

Blackening treatment solution for black Cr—Co alloy plating film

#13
20150037682
2015-02-05

Phosphorous-coated lithium metal products, method for production and use thereof

#14
20140360630
2014-12-11

Pretreating zinc surfaces prior to a passivating process

#15
20140353151
2014-12-04

Charged particle beam irradiation apparatus

#16
20140272441
2014-09-18

Trivalent chromium-containing composition for aluminum and aluminum alloys

#17
20140261897
2014-09-18

Methods of treating metal surfaces and devices formed thereby

#18
20140047687
2014-02-20

Manufacturing method for piezoelectric resonator device

#19
20130011565
2013-01-10

TREATMENT SOLUTION FOR FORMING OXIDATION-RESISTANT FILM ON SURFACE-COATED CERMET

#20
20120175024
2012-07-12

In-situ oxidized thermally applied ceramic coating

#21
20110268600
2011-11-03

High-strength steel material with excellent hydrogen embrittlement resistance

#22
20110223444
2011-09-15

Crystalline surface structures and methods for their fabrication

#23
20110215678
2011-09-08

PIEZOELECTRIC RESONATOR DEVICE, MANUFACTURING METHOD FOR PIEZOELECTRIC...

#24
20110139632
2011-06-16

Long-term storage of potable water in metallic vessels

#25
20110030852
2011-02-10

Method for producing pieces having a modified surface

#26
20100243109
2010-09-30

Method for producing corrosion-resistant surfaces of nitrated or nitrocarburated steel components

#27
20100224498
2010-09-09

Method for boriding of coatings using high speed electrolytic process

#28
20100186665
2010-07-29

Method for low temperature growth of inorganic materials from solution using catalyzed growth and re-growth

#29
20100147463
2010-06-17

CATALYST-AIDED CHEMICAL PROCESSING METHOD AND APPARATUS

#30
20090205965
2009-08-20

Method and apparatus for forming oxide coating

#31
20090087558
2009-04-02

Noble metal plating of titanium components

#32
20080166548
2008-07-10

Coating material for thermal barrier coating having excellent corrosion resistance and heat resistance and method of producing the same

#33
20080096046
2008-04-24

Method of treating the surface of copper and copper

#34
20080073222
2008-03-27

Catalyst-aided chemical processing method and apparatus

#35
20070134126
2007-06-14

Method of inhibiting metal corrosion

#36
20070125745
2007-06-07

Method of making an ignition device

#37
20060257688
2006-11-16

MCrAlX alloy and turbine component having protective layer made from MCrAlX alloy

#38
20060161263
2006-07-20

Osseoinductive magnesium-titanate implant and method of manufacturing the same

#39
20060144474
2006-07-06

High-strength steel material with excellent hydrogen embrittlement resistance

#40
20060135001
2006-06-22

Method for low temperature growth of inorganic materials from solution using catalyzed growth and re-growth

#41
20060118216
2006-06-08

Method for producing pieces having a modified surface

#42
20060035011
2006-02-16

Method of cryogenically coating a device

#43
20050284544
2005-12-29

Surface-treated titanium material excellent in oxidation resistance, production method thereof, and engine exhaust system

#44
20050173027
2005-08-11

Method for preparing patination materials and patination material

#45
20050147821
2005-07-07

Color metallic pigment and resin composition containing color metallic pigment