ClassID:

119929

C23C8/30 - 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 more than one element being applied in one step Carbo-nitriding

Sub-classes:
Recent Application in this class:
#1
20250257467
2025-08-14

HIGH-PRESSURE AND MULTI-ATMOSPHERE ASSISTED SLM GRADIENT MATERIAL PREPARATION METHOD AND ALUMINUM-LITHIUM ALLOY COATING

#2
20250027190
2025-01-23

CHEMICAL ACTIVATION OF SELF-PASSIVATING METALS

#3
20240279787
2024-08-22

METHODS AND APPARATUS TO CASE HARDEN TITANIUM ALLOYS

#4
20230212731
2023-07-06

STEEL COMPONENT

#5
20220341021
2022-10-27

SURFACE HARDENING TREATMENT DEVICE AND SURFACE HARDENING TREATMENT METHOD

#6
20220259713
2022-08-18

Dental and medical instruments comprising titanium

#7
20220018010
2022-01-20

Method for increasing magnetic induction intensity of soft magnetic metallic materials

#8
20210355577
2021-11-18

PROCESS FOR COATING A CONDUCTIVE COMPONENT AND CONDUCTIVE COMPONENT COATING

#9
20210172046
2021-06-10

Chemical activation of self-passivating metals

#10
20210123125
2021-04-29

Pre-treatment process of a surface of a metallic substrate

#11
20210025017
2021-01-28

Case hardened titanium parts and method for making the same

#12
20200378182
2020-12-03

Methods for manufacturing a drum and a spring brake for an electromechanical actuator, associated electromechanical actuator and home automation installation

#13
20190360444
2019-11-28

Valve and method for producing a valve

#14
20190292646
2019-09-26

Case hardened component of titanium

#15
20190202748
2019-07-04

Method for obtaining a carbonitrided zirconia-based article

#16
20190143396
2019-05-16

CORE FOR HIGH-TEMPERATURE SHAPING OF A METAL PART AND MANUFACTURING PROCESS

#17
20190078192
2019-03-14

Durable cosmetic finishes for titanium surfaces

#18
20190062893
2019-02-28

Method for producing at least one component for a hydraulic displacement unit

#19
20180305803
2018-10-25

Dental and medical instruments comprising titanium

#20
20180058516
2018-03-01

CLUTCH

#21
20180023187
2018-01-25

Process for coating a conductive component and conductive component coating

#22
20170362694
2017-12-21

Dental and medical instruments comprising titanium

#23
20170247786
2017-08-31

METHOD FOR PRODUCING METAL CARBONITRIDE FILM OR METALLOID CARBONITRIDE FILM, METAL CARBONITRIDE FILM OR METALLOID CARBONITRIDE FILM, AND APPARATUS FOR PRODUCING METAL CARBONITRIDE FILM OR METALLOID CARBONITRIDE FILM

#24
20170226604
2017-08-10

Method for producing a retort for a nitriding furnace and retort

#25
20170218906
2017-08-03

Valve and method for producing a valve

#26
20170130311
2017-05-11

Oxidation controlled twin wire arc spray materials

#27
20170088931
2017-03-30

Durable cosmetic finishes for titanium surfaces

#28
20160158844
2016-06-09

Method of producing alloyed metallic products

#29
20160102395
2016-04-14

THREE STEP SURFACE ENHANCEMENT PROCESS FOR CARBON ALLOY FLUID ENDS

#30
20160053359
2016-02-25

Process and apparatus for thermochemically hardening workpieces

#31
20160032442
2016-02-04

Enhanced activation of self-passivating metals

#32
20150252463
2015-09-10

Dental and medical instruments comprising titanium

#33
20150250559
2015-09-10

Dental and medical instruments comprising titanium

#34
20150250558
2015-09-10

Dental and medical instruments comprising titanium

#35
20150182068
2015-07-02

Process for manufacturing a cookware article with electroformed silver or silver alloy interior

#36
20150176114
2015-06-25

Method for Producing at least One Component and Open-Loop and/or Closed-Loop Control Device

#37
20150159710
2015-06-11

Friction material and methods of making and using the same

#38
20150089810
2015-04-02

Dental and medical instruments comprising titanium

#39
20140352848
2014-12-04

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

#40
20140338795
2014-11-20

Method for manufacturing a titanium alloy for biomedical devices

#41
20140076083
2014-03-20

Method of manufacturing an integrated member

#42
20140060983
2014-03-06

Vehicular disc brake rotor and manufacturing method of vehicular disc brake rotor

#43
20140060704
2014-03-06

Manufacturing method of cast-iron friction member

#44
20130304178
2013-11-14

Implant and method for manufacturing same

#45
20130297006
2013-11-07

Implant with increased carbon content at near-surface boundary layer

#46
20130126049
2013-05-23

Process for carbonitriding metallic components

#47
20130042992
2013-02-21

METHOD FOR SURFACE TREATMENT OF A DIE-CASTING DIE

#48
20130037173
2013-02-14

Method for carbonitriding at least one component in a treatment chamber

#49
20130008565
2013-01-10

Method and apparatus for heat treating a metal

#50
20120272526
2012-11-01

Dental and medical instruments comprising titanium

#51
20120219409
2012-08-30

Pump used in gasification system

#52
20120168035
2012-07-05

Steel for machine structural use, manufacturing method for same, case hardened steel component, and manufacturing method for same

#53
20120118445
2012-05-17

Dental and medical instruments comprising titanium

#54
20120111456
2012-05-10

Method of activating an article of passive ferrous or non-ferrous metal prior to carburising, nitriding and /or nitrocarburising

#55
20120103473
2012-05-03

METHOD FOR CARBONITRIDING

#56
20110272637
2011-11-10

Method for producing a gaseous atmosphere for treating metals

#57
20110120601
2011-05-26

Dental and medical instruments comprising titanium

#58
20110077732
2011-03-31

Implant and method for manufacturing same

#59
20100154937
2010-06-24

Carbonitriding method, machinery component fabrication method, and machinery component

#60
20100146753
2010-06-17

Method for increasing the strength of components

#61
20090178733
2009-07-16

Carburizing in hydrocarbon gas

#62
20090133534
2009-05-28

Solid-solution powder, method to prepare the solid-solution powder, cermet powder including the solid-solution powder, method to prepare the cermet powder, cermet using the cermet powder and method to prepare the cermet

#63
20080032260
2008-02-07

Dental and medical instruments comprising titanium

#64
20070069576
2007-03-29

Valve and manufacturing method thereof

#65
20060216192
2006-09-28

Solid-solution powder, method to prepare the solid-solution powder, cermet powder including the solid-solution powder, method to prepare the cermet powder, cermet using the cermet powder and method to prepare the cermet

#66
20060183635
2006-08-17

Atmosphere heat treatment cocatalyst, method of its application, heat treatment method and heat treatment atmosphere of using the cocatalyst

#67
20060048857
2006-03-09

Method for processing alloys via high-current density ion implantation

#68
20050180875
2005-08-18

Solid-solution powder, method to prepare the solid-solution powder, cermet powder including the solid-solution powder, method to prepare the cermet powder, cermet using the cermet powder and method to prepare the cermet

#69
18163644
2024-05-21

Methods and apparatus to case harden titanium alloys