Patents-Review.com
ClassID:

119939 ⎘

C23C8/50 - 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 only one element being applied; Nitriding of ferrous surfaces

Recent Application in this class:
#1
20250154033
2025-05-15

METHOD FOR TREATING WASTE WATERS AND RESIDUE SLUDGE BY MEANS OF CARBONATION IN A CHEMICAL INSTALLATION FOR NITRIDATION IN A MOLTEN SALT BATH

 #2
20250122105
2025-04-17

METHOD FOR TREATING WASTE WATERS AND RESIDUE SLUDGE BY MEANS OF CARBONATION AND DECARBONATION IN A CHEMICAL INSTALLATION FOR NITRIDATION IN A MOLTEN SALT BATH

 #3
20240055165
2024-02-15

IRON-BASED NANOPARTICLES AND GRAINS

 #4
20230167534
2023-06-01

Method of treating an article

 #5
20220220999
2022-07-14

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

 #6
20220080500
2022-03-17

Iron-based nanoparticles and grains

 #7
20210404754
2021-12-30

Applying coatings to the interior surfaces of heat exchangers

 #8
20210214833
2021-07-15

Method for producing surface-hardened material

 #9
20200283883
2020-09-10

Method of treating the surfaces of mould parts for casting moulds consisting of a steel material

 #10
20200208234
2020-07-02

Grain-oriented electrical steel sheet and method of manufacturing same

 #11
20200173010
2020-06-04

Method and system for cooling metal parts after nitriding

 #12
20200061690
2020-02-27

Method for manufacturing a complex-formed component

 #13
20200038951
2020-02-06

Iron-based nanoparticles and grains

 #14
20190153556
2019-05-23

Solid lubricant-coated steel articles, method and apparatus for manufacturing thereof and quenching oil used in the manufacturing

 #15
20190136362
2019-05-09

Coating system for tubular gripping components

 #16
20190100827
2019-04-04

Nitriding of niobium steel and product made thereby

 #17
20180236553
2018-08-23

Sliding member and method for producing same

 #18
20180209541
2018-07-26

Piston ring and its production method

 #19
20180198352
2018-07-12

Method of forming a rotor

 #20
20180154449
2018-06-07

Method for producing a swashplate

 #21
20180085823
2018-03-29

Nitrided layer repair method

 #22
20180002773
2018-01-04

Grain-oriented electrical steel sheet and method of manufacturing same

 #23
20170216955
2017-08-03

Method for welding a case hardened component

 #24
20170122392
2017-05-04

Brake Disc for a Motor Vehicle

 #25
20170121785
2017-05-04

PRIMARY RECRYSTALLIZATION ANNEALED SHEET FOR GRAIN-ORIENTED ELECTRICAL STEEL SHEET PRODUCTION, AND METHOD OF PRODUCING GRAIN-ORIENTED ELECTRICAL STEEL SHEET

 #26
20170009314
2017-01-12

Piston ring and its production method

 #27
20170002453
2017-01-05

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

 #28
20150368732
2015-12-24

Method and device for nitriding grain-oriented electrical steel sheet

 #29
20150318092
2015-11-05

Production method for grain-oriented electrical steel sheet and primary recrystallized steel sheet for production of grain-oriented electrical steel sheet

 #30
20150299819
2015-10-22

Production method for grain-oriented electrical steel sheet

 #31
20150176113
2015-06-25

Partial heat treatment method in salt bath at low temperature

 #32
20150140226
2015-05-21

PROCESS FOR DIFFUSING A SUBSTRATE INTO A BASE MATERIAL

 #33
20150132547
2015-05-14

Grain-oriented electrical steel sheet and method for improving iron loss properties thereof

 #34
20150059933
2015-03-05

Steel for cold forging/nitriding, steel material for cold forging/nitriding, and cold-forged/nitrided component

 #35
20150053310
2015-02-26

Method for welding a case hardened component

 #36
20150027591
2015-01-29

Steel material for nitriding and nitrided component

 #37
20140360629
2014-12-11

Grain-oriented electrical steel sheet and method of manufacturing the same

 #38
20140251507
2014-09-11

Steel for surface hardening for machine structural use and part for machine structural use

 #39
20140048181
2014-02-20

Flat Steel Product and Method for Producing a Flat Steel Product

 #40
20130327445
2013-12-12

Molten-salt bath for nitriding mechanical parts made of steel, and implementation method

 #41
20130306194
2013-11-21

Manufacturing process for aerospace bearing rolling elements

 #42
20130146350
2013-06-13

Method for manufacturing high-nitrogen steel wire and overhead power line using same

 #43
20120325673
2012-12-27

Electrochemical nitridation of metal surfaces

 #44
20120241050
2012-09-27

NITRIDING PROCESS FOR MARAGING STEEL

 #45
20120186703
2012-07-26

NITRIDING OF NIOBIUM STEEL AND PRODUCT MADE THEREBY

 #46
20120118434
2012-05-17

STEEL MEMBER HAVING NITROGEN COMPOUND LAYER AND PROCESS FOR PRODUCING SAME

 #47
20120080122
2012-04-05

Steel for nitriding use and nitrided part

 #48
20110277886
2011-11-17

NITRIDING OF NIOBIUM STEEL AND PRODUCT MADE THEREBY

 #49
20110274578
2011-11-10

Steel for surface hardening for machine structural use and part for machine structural use

 #50
20100294078
2010-11-25

Engine starter

 #51
20100273538
2010-10-28

Nitriding stainless steel for consumer electronic products

 #52
20100163138
2010-07-01

METHOD FOR QUENCHING OF STEEL MEMBER, QUENCHED STEEL MEMBER, AND AGENT FOR PROTECTING QUENCHED SURFACE

 #53
20100055496
2010-03-04

STEEL HAVING HIGH STRENGTH

 #54
20080099108
2008-05-01

Method for hardening stainless steel and molten salt bath for realizing said process

 #55
20070193659
2007-08-23

Method for nitriding metal in salt bath and metal manufactured using the same

 #56
20070110610
2007-05-17

Hot work tool steel and mold member excellent resistance to melting loss

 #57
20060192347
2006-08-31

Nitrided material for MLS active layers

 #58
20060048860
2006-03-09

Machine part and method for manufacturing same