ClassID:

119918

C23C8/08 - 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 gases only one element being applied

Sub-classes:
Recent Application in this class:
#1
20260052962
2026-02-19

CHEMICAL PASSIVATION OF MOLYBDENUM PLUG OR TRENCH'S OUTER SURFACE TO PREVENT MO NITRIDATION OR OXIDATION AND MAINTAIN LOW CONTACT RESISTANCE

#2
20250034694
2025-01-30

SURFACE MODIFIED SUBSTRATES AND RELATED METHODS

#3
20240327968
2024-10-03

THERMAL CHEMICAL VAPOR DEPOSITION DEVICE WITH SINGLE FURNACE AND MANUFACTURING METHOD OF TRANSITION METAL DICHALCOGENIDE WITH THIS DEVICE

#4
20240229259
2024-07-11

A METHOD FOR PRODUCING ELECTRODES FOR ELECTROLYSIS

#5
20230282450
2023-09-07

REMOTE PLASMA SOURCE SHOWERHEAD ASSEMBLY WITH ALUMINUM FLUORIDE PLASMA EXPOSED SURFACE

#6
20230193439
2023-06-22

Articles fabricated from cold-worked and case- hardened essentially co-free stainless steel alloys and methods of fabrication thereof

#7
20230131168
2023-04-27

PROCESSING METHOD FOR FLUORINATION OF FLUORINATION-TARGET COMPONENT AND FLUORINATED COMPONENT OBTAINED THEREBY

#8
20230093910
2023-03-30

ADDITIVE MANUFACTURED ARTICLES HAVING PASSIVATED SURFACES AND RELATED METHODS

#9
20230050837
2023-02-16

Method for forming binder-free refractory carbide, nitride and boride coatings with a controlled porosity

#10
20220064788
2022-03-03

Adhesion removal method and film-forming method

#11
20220064777
2022-03-03

ADHESION REMOVAL METHOD AND FILM-FORMING METHOD

#12
20210071306
2021-03-11

Integrated surface treatments and coatings for artificial lift pump components

#13
20200378020
2020-12-03

Preparing method for titanium of Ti—C—S anode by carbonized/sulfurized ilmenite

#14
20200362448
2020-11-19

Preparation method and application of the multicomponent composite sulfides lubricant film

#15
20200362446
2020-11-19

Method for fabricating a crystalline metal-phosphide hetero-layer by converting first and second crystalline metal-source layers into first and second crystalline metal phosphide layers

#16
20200208248
2020-07-02

Mechanically-assisted gaseous addition of hydrogen to metal alloys

#17
20200173009
2020-06-04

Method for manufacturing filled container, and filled container

#18
20190113176
2019-04-18

Material, storage container using the material, valve attached to the storage container, method of storing ClF and method of using ClF storage container

#19
20190078192
2019-03-14

Durable cosmetic finishes for titanium surfaces

#20
20180265959
2018-09-20

Method for using boronizing reaction gases as a protective atmosphere during boronizing, and reaction gas neutralizing treatment

#21
20170352745
2017-12-07

Method of manufacturing semiconductor device

#22
20170341142
2017-11-30

Method for additive manufacturing

#23
20170341141
2017-11-30

Method for additive manufacturing

#24
20170283934
2017-10-05

Method for altering surface of metal, and metallic product

#25
20170088931
2017-03-30

Durable cosmetic finishes for titanium surfaces

#26
20170058390
2017-03-02

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

#27
20170029944
2017-02-02

Cutting tool

#28
20160344022
2016-11-24

Metal hydride alloys with improved rate performance

#29
20160325358
2016-11-10

Conditioning one or more additive manufactured objects

#30
20160279739
2016-09-29

Method for determining characteristic stress of welding structure, method for designing welded structure, and method for manufacturing welded structure

#31
20160273090
2016-09-22

LOW PRESSURE GASEOUS HYDROGEN-CHARGE TECHNIQUE WITH REAL TIME CONTROL

#32
20160097244
2016-04-07

Method for increasing the roughness of injector gripper blocks for coiled tubing operations

#33
20160060764
2016-03-03

Deposition method and method of manufacturing a catalyst wire for a catalytic chemical vapor deposition apparatus

#34
20150211103
2015-07-30

Hydriding of metallic substrates

#35
20150129088
2015-05-14

GASEOUS SULFUR TREATMENT METHODS FOR COPPER ZINC ALLOYS

#36
20140370415
2014-12-18

Stainless separator for fuel cell and method of manufacturing the same

#37
20140352848
2014-12-04

Method for adjusting pore size of porous metal material and pore structure of porous metal material

#38
20140290801
2014-10-02

Hydride assembling system and method of making a hydride batch

#39
20130266892
2013-10-10

Method for reducing formation of electrically resistive layer on ferritic stainless steels

#40
20130240091
2013-09-19

Articles comprising ferritic stainless steels

#41
20120267011
2012-10-25

SULFUR TREATMENT FOR COPPER ZINC ALLOYS

#42
20110232573
2011-09-29

Catalytic Chemical Vapor Deposition Apparatus

#43
20110223444
2011-09-15

Crystalline surface structures and methods for their fabrication

#44
20110159184
2011-06-30

Method of fluoridation and directions for use of a unit of fluoridation

#45
20110073217
2011-03-31

Wear resistant device and process therefor

#46
20100247764
2010-09-30

Method For Surface Treatment of Ti-Al Alloy and Ti-Al Alloy Obtained by The Method

#47
20100227052
2010-09-09

METHODS FOR PROCESSING SUBSTRATES HAVING AN ANTIMICROBIAL COATING

#48
20100206480
2010-08-19

PROCESSES AND EQUIPMENTS FOR PREPARING F2-CONTAINING GASES, AS WELL AS PROCESSES AND EQUIPMENTS FOR MODIFYING THE SURFACES OF ARTICLES

#49
20090269649
2009-10-29

Stainless separator for fuel cell and method of manufacturing the same

#50
20090047792
2009-02-19

Processes and equipments for preparing F2-containing gases, as well as process and equipments for modifying the surfaces of articles

#51
20080257455
2008-10-23

Surface carburization technique of medical titanium alloy femoral head in hip arthroplasty

#52
20080236710
2008-10-02

Method for reducing formation of electrically resistive layer on ferritic stainless steels

#53
20070116893
2007-05-24

LOW-HYDROGEN PHOTOVOLTAIC CELL

#54
20070116892
2007-05-24

Methods and apparatus for treating a work piece with a vaporous element

#55
20060191102
2006-08-31

Color-coded stainless steel fittings and ferrules