ClassID:

119726

C22C33/0228 - CPC Classification

Classification description:

Making ferrous alloys by powder metallurgy; Using a mixture of prealloyed powders or a master alloy comprising other non-metallic compounds or more than 5% of graphite

Recent Application in this class:
#1
20250129457
2025-04-24

CORROSION-RESISTANT OXIDE DISPERSION STRENGTHENED STEEL

#2
20230311203
2023-10-05

Powder metal material for additive manufacturing and method for producing non-magnetic steel

#3
20200016663
2020-01-16

Samarium-iron-nitrogen alloy powder and method for producing same

#4
20190153573
2019-05-23

Iron-based sintered alloy and method for producing same

#5
20190030607
2019-01-31

Composition of particulate materials and process for obtaining self-lubricating sintered products

#6
20180202029
2018-07-19

Iron-based powder for powder metallurgy and method for producing iron-based powder for powder metallurgy

#7
20180126454
2018-05-10

MIXED POWDER FOR IRON-BASED POWDER METALLURGY AND SINTERED BODY PRODUCED USING SAME

#8
20180075952
2018-03-15

Component with a ceramic base body having a conduit and a fastening element and method

#9
20180044779
2018-02-15

Fe-Pt-BASED SPUTTERING TARGET WITH DISPERSED C GRAINS

#10
20180016664
2018-01-18

Powder metal composition for easy machining

#11
20170369977
2017-12-28

Iron-based sintered body

#12
20170275742
2017-09-28

CERAMIC AND METAL BORON NITRIDE NANOTUBE COMPOSITES

#13
20170275740
2017-09-28

Pre-alloyed iron-based powder, an iron-based powder mixture containing the pre-alloyed iron-based powder and a method for making pressed and sintered components from the iron-based powder mixture

#14
20160184896
2016-06-30

Composition of particulate materials and process for obtaining self-lubricating sintered products

#15
20160108502
2016-04-21

Method for producing powder for magnet

#16
20160082410
2016-03-24

Permeable porous composite

#17
20160031002
2016-02-04

Amorphous steel composites with enhanced strengths, elastic properties and ductilities

#18
20160017464
2016-01-21

Corrosion resistant article and methods of making

#19
20150360311
2015-12-17

Composite wear pad and methods of making the same

#20
20150033912
2015-02-05

System and method of forming nanostructured ferritic alloy

#21
20140373678
2014-12-25

Composite magnetic material and method for manufacturing same

#22
20140341771
2014-11-20

Machinability improving composition

#23
20140144541
2014-05-29

Graphene-based steel tubes, pipes or risers, methods for the production thereof and the use thereof for conveying petroleum, gas and biofuels

#24
20140113201
2014-04-24

Method for the production of a porous element, and cell of a rechargeable oxide battery

#25
20140102595
2014-04-17

Fe-based amorphous alloy and dust core made using Fe-based amorphous alloy powder

#26
20140096858
2014-04-10

Apparatus for manufacturing compound powder, method of manufacturing iron-boron compound powder by using the apparatus, boron alloy powder mixture, method of manufacturing the boron alloy powder mixture, combined powder structure, method of manufacturing the combined powder structure, steel pipe, and method of manufacturing the steel pipe

#27
20140086783
2014-03-27

Process for manufacturing a reinforced alloy by plasma nitriding

#28
20140085039
2014-03-27

Soft magnetic powder

#29
20130306470
2013-11-21

Sputtering target for magnetic recording film

#30
20130236349
2013-09-12

Industrial method for producing dispersion-strengthened iron-based materials at low cost and in large-scale

#31
20130213803
2013-08-22

Fe-Pt-based sputtering target with dispersed C grains

#32
20130209350
2013-08-15

Oxygen absorbing agent and method for storing the same

#33
20130186237
2013-07-25

Thermal spray applications using iron based alloy powder

#34
20130113578
2013-05-09

Method for manufacturing resonance tube, resonance tube, and filter

#35
20130089454
2013-04-11

Component having reduced metal adhesion

#36
20120244030
2012-09-27

Powder for magnet

#37
20120177528
2012-07-12

Sintered material, ferrous sintered sliding material, producing method of the same, sliding member, producing method of the same and coupling device

#38
20120160775
2012-06-28

Permeable porous composite

#39
20120107168
2012-05-03

IRON-BASED SINTERED SLIDING MEMBER AND MANUFACTURING METHOD THEREOF

#40
20120085201
2012-04-12

IRON-BASED MIXED POWDER FOR POWDER METALLURGY

#41
20120001710
2012-01-05

Powder magnetic core and magnetic element using the same

#42
20110303778
2011-12-15

Milling cone for a compression crusher

#43
20110286873
2011-11-24

COMPOSITION OF PARTICULATE MATERIALS FOR FORMING SELF-LUBRICATING PRODUCTS IN SINTERED STEEL, PRODUCT IN SELF-LUBRICATING SINTERED STEEL AND PROCESS FOR OBTAINING SELF-LUBRICATING PRODUCTS IN SINTERED STEEL

#44
20110272622
2011-11-10

Process for producing composite magnetic material, dust core formed from same, and process for producing dust core

#45
20110262294
2011-10-27

Machinability improving composition

#46
20110229715
2011-09-22

Hierarchical composite material

#47
20110212339
2011-09-01

Metallurgical composition of particulate materials, self-lubricating sintered products and process for obtaining self-lubricating sintered products

#48
20110146448
2011-06-23

Sintered valve guide and production method therefor

#49
20110052410
2011-03-03

Powder metal scrolls

#50
20100289194
2010-11-18

Use and method of producing a dispersion strengthened steel as material in a roller for a roller hearth furnace

#51
20100247840
2010-09-30

PERMEABLE ANNULUS

#52
20100224822
2010-09-09

Insulated iron-base powder for soft magnetic applications

#53
20100224025
2010-09-09

Iron-based powder for powder metallurgy

#54
20100192476
2010-08-05

Wear-resistant material

#55
20100190025
2010-07-29

Powder metallurgy composition

#56
20100175508
2010-07-15

HIGH TEMPERATURE ALLOYS

#57
20100068087
2010-03-18

METHODS AND APPARATUS FOR MIXING POWDERY SUBSTANCES, PARTICULARLY FOR MANUFACTURE OF METAL MATRIX COMPOSITE (MMC) MATERIALS

#58
20090274571
2009-11-05

Nd-Fe-B Permanent Magnetic Material

#59
20090148334
2009-06-11

NANOPHASE DISPERSION STRENGTHENED LOW CTE ALLOY

#60
20090065260
2009-03-12

HARDFACING CONTAINING FULLERENES FOR SUBTERRANEAN TOOLS AND METHODS OF MAKING

#61
20090025834
2009-01-29

Amorphous steel composites with enhanced strengths, elastic properties and ductilities

#62
20080260564
2008-10-23

Compacted magnetic core, production method of the same, and motor for electric vehicle

#63
20080258102
2008-10-23

Powder magnetic core and the method of manufacturing the same

#64
20080226899
2008-09-18

High-frequency magnetic material comprising an oxide phase and method for producing the same

#65
20080078474
2008-04-03

Magnetic core using amorphous soft magnetic alloy

#66
20070292298
2007-12-20

Metallic powder for powder metallurgy whose main component is iron and iron-based sintered body

#67
20070199409
2007-08-30

Iron-based powder composition

#68
20070169585
2007-07-26

Alloy powder for forming hard phase and ferriferous mixed powder using the same, and manufacturing method for wear resistant sintered alloy and wear resistant sintered alloy

#69
20070144622
2007-06-28

High temperature resistant alloys

#70
20070081913
2007-04-12

Iron base sintered alloy having highly densified and hardened surface, and producing method thereof

#71
20070067990
2007-03-29

Powder metal scrolls

#72
20070056657
2007-03-15

Corrosion and wear resistant alloy

#73
20070036669
2007-02-15

Soft magnetic material and method for producing the same

#74
20070029295
2007-02-08

High hardness/high wear resistant iron based weld overlay materials

#75
20060219054
2006-10-05

Wear resistant sintered member

#76
20060207386
2006-09-21

Alloy powder for forming hard phase and ferriferous mixed powder using the same, and manufacturing method for wear resistant sintered alloy and wear resistant sintered alloy

#77
20060150406
2006-07-13

Powder metal scrolls

#78
20060096673
2006-05-11

High temperature alloys

#79
20060065072
2006-03-30

Iron-based mixed powder for powder metallurgy and sintered body

#80
20060032328
2006-02-16

Sintered valve guide and manufacturing method thereof

#81
20060002812
2006-01-05

Sintered metal parts and method for the manufacturing thereof

#82
20060000310
2006-01-05

Powder additive

#83
20050274223
2005-12-15

Powder metallurgical compositions and parts made therefrom

#84
20050252338
2005-11-17

Iron-based sintered alloy with dispersed hard particles

#85
20050236073
2005-10-27

Sliding member

#86
20050132842
2005-06-23

Alloy powder for forming hard phase and ferriferous mixed powder using the same, and manufacturing method for wear resistant sintered alloy and wear resistant sintered alloy

#87
20050095163
2005-05-05

Production method for sintered component made of stainless steel with high corrosion resistance

#88
20050084406
2005-04-21

Method of manufacturing oxide dispersion strengthened martensitic steel excellent in high-temperature strength having residual α-grains

#89
20050084405
2005-04-21

Dispersed oxide reinforced martensitic steel excellent in high temperature strength and method for production thereof

#90
20050042127
2005-02-24

Method for producing dispersed oxide reinforced ferritic steel having coarse grain structure and being excellent in high temperature creep strength