ClassID:

119916

C23C8/04 - 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 Treatment of selected surface areas, e.g. using masks

Recent Application in this class:
#1
20260139352
2026-05-21

MASKLESS TOUCH UP TOOL FOR SURFACE COATINGS

#2
20260136901
2026-05-14

COPPER-BASED TUNNELING BARRIER LAYER FOR STRESS REDUCTION IN COPPER STRUCTURES AND METHODS FOR FORMING THE SAME

#3
20260036176
2026-02-05

METHOD OF CARBURIZING DRIVELINE COMPONENTS

#4
20250320597
2025-10-16

MASKLESS TOUCH UP TOOL FOR SURFACE COATINGS

#5
20250320596
2025-10-16

MASKLESS TOUCH UP TOOL FOR SURFACE COATINGS

#6
20250320595
2025-10-16

MASKLESS TOUCH UP TOOL FOR SURFACE COATINGS

#7
20250320594
2025-10-16

MASKLESS TOUCH UP TOOL FOR SURFACE COATINGS

#8
20250161858
2025-05-22

INLINE FILTRATION FOR STEAM APPLICATIONS

#9
20230257864
2023-08-17

Dual phase magnetic material component and method of its formation

#10
20220341020
2022-10-27

Dual phase magnetic material component and method of its formation

#11
20220340987
2022-10-27

Fabrication method for a component having magnetic and non-magnetic dual phases

#12
20220220999
2022-07-14

Guiding member, mechanical system comprising such a guiding member, and method for producing such a guiding member

#13
20210372485
2021-12-02

METHOD OF CARBURIZING DRIVELINE COMPONENTS

#14
20210324507
2021-10-21

Process for coating substrates with aperture(s)

#15
20200399751
2020-12-24

METHOD OF CASE HARDENING GEARS

#16
20200264566
2020-08-20

Zirconia covering element with selective coloring

#17
20200149410
2020-05-14

Enhanced film cooling system

#18
20200048754
2020-02-13

LOW PRESSURE INDUCTION CARBURIZATION

#19
20200017405
2020-01-16

Low-E matchable coated articles having doped seed layer under silver, and corresponding methods

#20
20190316244
2019-10-17

Methods of removing a ceramic coating from a substrate

#21
20190223899
2019-07-25

Tip for an ultrasonic surgical tool with case hardened cutting edges and method of making same

#22
20190204489
2019-07-04

Method for patterning film layer, wire grid polarizer and manufacturing method thereof

#23
20190032191
2019-01-31

Hollow spring member and hollow spring member production method

#24
20190032190
2019-01-31

Hollow stabilizer production method and hollow stabilizer production device

#25
20190017161
2019-01-17

FERRITIC NITROCARBURIZED VEHICLE COMPONENT AND METHODS OF MAKING AND USING THE SAME

#26
20180298482
2018-10-18

Vapor deposition mask and organic EL display device

#27
20180141081
2018-05-24

Method for thermochemically treating a part while masking a portion and corresponding mask

#28
20170335445
2017-11-23

METHOD OF CASE HARDENING GEARS

#29
20170328135
2017-11-16

Roller cone drill bit with improved erosion resistance

#30
20170276271
2017-09-28

Multiple layer hardness ferrule and method

#31
20170275749
2017-09-28

Vapor deposition mask and organic el display device

#32
20170183764
2017-06-29

Dual phase magnetic material component and method of forming

#33
20170137925
2017-05-18

METHOD, APPARATUS, AND COMPUTER-READABLE MEDIUM FOR CARBURIZATION

#34
20170130316
2017-05-11

Low pressure induction carburization

#35
20170058390
2017-03-02

Mask formulation to prevent aluminizing onto the pre-existing chromide coating

#36
20170051388
2017-02-23

Mask-Less Selective Plating of Leadframe

#37
20170051374
2017-02-23

Snap fit assembly for a ruggedized multi-section structure with selective embrittlement or case hardening

#38
20170044654
2017-02-16

Method and device of surface-treating a metallic part

#39
20170009330
2017-01-12

TRIVALENT CHROMIUM-CONTAINING COMPOSITION FOR USE IN CORROSION RESISTANT COATINGS ON METAL SURFACES

#40
20170002453
2017-01-05

Galling and corrosion resistant inner diameter surface in aluminum caster roll shell steels

#41
20160363349
2016-12-15

METHOD FOR PRODUCING AN ELEMENT FOR ABSORBING SOLAR RADIATION FOR A CONCENTRATING SOLAR THERMAL POWER PLANT, ELEMENT FOR ABSORBING SOLAR RADIATION

#42
20160363222
2016-12-15

Nitride coated piston ring

#43
20160348780
2016-12-01

Sliding camshaft with improved compressive residual stress

#44
20160298203
2016-10-13

High fatigue strength components requiring areas of high hardness

#45
20160281207
2016-09-29

Plasma nitriding apparatus

#46
20160203899
2016-07-14

Graded magnetic component and method of forming

#47
20160203898
2016-07-14

Multi-phase magnetic component and method of forming

#48
20160138593
2016-05-19

Rotary compressor having vane that has diamond-like carbon layer

#49
20160060720
2016-03-03

Stainless steel and method of manufacturing the same

#50
20160024636
2016-01-28

MANUFACTURING METHOD OF STEEL IN WHICH AN ELEMENT OF TREATMENT GAS IS DISSOLVED AND DIFFUSED

#51
20160017476
2016-01-21

Metal sheet and method for its treatment

#52
20160002747
2016-01-07

Process for treating steel alloys for gears

#53
20150316052
2015-11-05

Nitrogen- and ceramic-surface-treated components for downhole motors and related methods

#54
20150299819
2015-10-22

Production method for grain-oriented electrical steel sheet

#55
20150292053
2015-10-15

METHOD FOR TREATING A CAST IRON WORKPIECE AND WORKPIECE FORMED THEREBY

#56
20150284836
2015-10-08

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

#57
20150284835
2015-10-08

METHOD OF MAKING ENHANCED SURFACE COATING FOR LIGHT METAL WORKPIECE

#58
20150251218
2015-09-10

Method for thermochemically treating a part while masking a portion and corresponding mask

#59
20150219159
2015-08-06

Bearing having a raceway with high chromium content

#60
20150211621
2015-07-30

SINTERED COMPONENT

#61
20150211103
2015-07-30

Hydriding of metallic substrates

#62
20150176113
2015-06-25

Partial heat treatment method in salt bath at low temperature

#63
20150160416
2015-06-11

MULTIPLE LAYER HARDNESS FERRULE

#64
20150159710
2015-06-11

Friction material and methods of making and using the same

#65
20150159261
2015-06-11

Steel for nitrocarburizing and nitrocarburized component, and methods for producing said steel for nitrocarburizing and said nitrocarburized component

#66
20150115749
2015-04-30

Dual phase magnetic material component and method of forming

#67
20150107723
2015-04-23

Partially carbonitriding heat treated stainless steel ferrule and manufacturing method thereof

#68
20150107720
2015-04-23

Partially carbonitriding heat treated stainless steel ferrule and manufacturing method thereof

#69
20150107719
2015-04-23

PARTIAL HEAT-TREATMENT METHOD USING DOUBLE METAL LAYER

#70
20150083277
2015-03-26

Method for producing oxide layers which protect against wear and/or corrosion

#71
20150075418
2015-03-19

CRUCIBLES MADE WITH THE COLD FORM PROCESS

#72
20150054222
2015-02-26

Piston ring with chromium solid particle wear-prevention layer and corrosion-resistant flank surface

#73
20150047748
2015-02-19

Method of improvement of mechanical properties of products made of metals and alloys

#74
20140373354
2014-12-25

Method for producing a turbine rotor of an exhaust gas turbocharger, and use of a turbine rotor

#75
20140370415
2014-12-18

Stainless separator for fuel cell and method of manufacturing the same

#76
20140287137
2014-09-25

Method for rust-proofing mold

#77
20140233163
2014-08-21

Metal structures having hardened surfaces with three-dimensional topologies

#78
20140224383
2014-08-14

Steel for manufacturing cemented steel parts, cemented steel parts made with said steel and method for manufacturing same

#79
20140209025
2014-07-31

Deposition mask and deposition apparatus having the same

#80
20140008874
2014-01-09

Method for producing piston rings

#81
20130302109
2013-11-14

Screw made of low-alloy carbon steel, and method for producing such a screw

#82
20130235978
2013-09-12

Antiwetting coating for liquid metal bearing and method of making same

#83
20130209015
2013-08-15

Method of making a bearing ring, a bearing ring and a bearing

#84
20130052344
2013-02-28

Automated wet masking for diffusion coatings

#85
20130025745
2013-01-31

Mask-Less Selective Plating of Leadframes

#86
20120291923
2012-11-22

Method of manufacturing a laminar ring

#87
20120291699
2012-11-22

CRUCIBLES MADE WITH THE COLD FORM PROCESS

#88
20120225209
2012-09-06

Method and apparatus for masking a portion of a component

#89
20120184111
2012-07-19

SELECTIVE PLASMA NITRIDING METHOD AND PLASMA NITRIDING APPARATUS

#90
20120175024
2012-07-12

In-situ oxidized thermally applied ceramic coating

#91
20120082790
2012-04-05

Ultraviolet angled spray nozzle

#92
20120060977
2012-03-15

Method of manufacturing carburized parts

#93
20120031249
2012-02-09

Method for refining texture of ferrous material, and ferrous material and blade having microscopic texture

#94
20110317340
2011-12-29

Selective nitriding on a 3D surface

#95
20110027537
2011-02-03

CARBON-COATED ALUMINUM MATERIAL AND METHOD FOR MANUFACTURING THE SAME

#96
20100221441
2010-09-02

Heat treatment method

#97
20100209597
2010-08-19

Selective oxidation process

#98
20100132843
2010-06-03

Trivalent chromium-containing composition for use in corrosion resistant coatings on metal surfaces

#99
20100107388
2010-05-06

Method for manufacturing piezoelectric device

#100
20090269649
2009-10-29

Stainless separator for fuel cell and method of manufacturing the same

#101
20090197112
2009-08-06

Method for Substrate Stabilization of Diffusion Aluminide Coated Nickel-Based Superalloys

#102
20090087558
2009-04-02

Noble metal plating of titanium components

#103
20090074972
2009-03-19

Method for substrate stabilization of diffusion aluminide coated nickel-based superalloys

#104
20090011526
2009-01-08

INCREASING AN ELECTRICAL RESISTANCE OF A RESISTOR BY NITRIDIZATION

#105
20080314754
2008-12-25

INCREASING AN ELECTRICAL RESISTANCE OF A RESISTOR BY NITRIDIZATION

#106
20080277031
2008-11-13

Surface-carbonitrided stainless steel part excellent in wear resistance and its manufacturing method

#107
20080268164
2008-10-30

Apparatuses and Methods for Cryogenic Cooling in Thermal Surface Treatment Processes

#108
20080152831
2008-06-26

Photocurable maskant composition and method of use

#109
20080102543
2008-05-01

Increasing an electrical resistance of a resistor by oxidation

#110
20080090665
2008-04-17

Member with inner teeth and method of producing the same

#111
20080047931
2008-02-28

IN-SITU OXIDIZED TEXTURED SURFACE FOR PROSTHETIC DEVICES

#112
20070292719
2007-12-20

Component comprising a masking layer

#113
20070267286
2007-11-22

Increasing an electrical resistance of a resistor by nitridization

#114
20070116874
2007-05-24

Selective aluminide coating process

#115
20070089675
2007-04-26

Device for a coating process, a retort, and a process for internal coating

#116
20060266436
2006-11-30

Carburizing method

#117
20060266285
2006-11-30

Masking material for holes of a component

#118
20060222773
2006-10-05

Method for masking a workpiece before encapsulation in a casting block

#119
20060216422
2006-09-28

Methods and apparatus for turbine engine component coating

#120
20060201001
2006-09-14

Coated cutting member having a nitride hardened substrate

#121
20060151069
2006-07-13

Carburization of ferrous-based shape memory alloys

#122
20060141158
2006-06-29

Methods and apparatus for turbine engine component coating

#123
20060131789
2006-06-22

Method for recycling coating maskant

#124
20060105160
2006-05-18

Component, method for coating a component, and powder

#125
20060078829
2006-04-13

Method of patterning a thick-film paste material layer, method of manufacturing cold- cathode field emission device, and method of manufacturing a cold-cathode field emission display

#126
20060048861
2006-03-09

Surface-carbonitrided stainless steel part excellent in wear resistance and method for their manufacture

#127
20060042837
2006-03-02

Maintaining carburized case during neutral to the core heat treatment processes

#128
20060021579
2006-02-02

Non-stick masking fixtures and methods of preparing same

#129
20050215686
2005-09-29

Process of masking cooling holes of a gas turbine component

#130
20050191421
2005-09-01

Method for coating a component

#131
20050181222
2005-08-18

Component comprising a masking layer