ClassID:

119660

C22C21/18 - CPC Classification

Classification description:

Alloys based on aluminium with copper as the next major constituent with zinc

Recent Application in this class:
#1
20250333828
2025-10-30

EFFICIENT AGING METHODS FOR ALUMINUM-LITHIUM ALLOYS BASED ON DYNAMIC STRAIN PRECIPITATION

#2
20250197983
2025-06-19

METHODS OF COLD FORMING ALUMINUM LITHIUM ALLOYS

#3
20250137102
2025-05-01

IMPROVED THIN SHEET MADE OF ALUMINIUM-COPPER-LITHIUM ALLOY

#4
20250092557
2025-03-20

COATING PROTECTION FOR STATOR VANES AND METHODS OF PROTECTION THEREOF

#5
20250011903
2025-01-09

ALUMINUM ALLOY FOR CASTING MOTOR ROTOR IN NEW ENERGY VEHICLE AND PREPARATION METHOD THEREFOR

#6
20240401180
2024-12-05

ALUMINUM COPPER LITHIUM ALLOY WITH IMPROVED MECHANICAL STRENGTH AND TOUGHNESS

#7
20240352559
2024-10-24

Homogenizing heterogeneous foils for light alloy metal parts

#8
20240337453
2024-10-10

HEAT EXCHANGER FOR A MOTOR VEHICLE WITH AN ALUMINUM ALLOY AND METHOD OF MANUFACTURE

#9
20240295007
2024-09-05

METHOD FOR RECOVERING PROCESSED ALUMINUM SCRAPS OF AERONAUTICAL ALUMINUM ALLOY

#10
20240287665
2024-08-29

ALUMINUM-COPPER-LITHIUM ALLOY PRODUCTS

#11
20240175114
2024-05-30

METHODS OF PRODUCING 2XXX ALUMINUM ALLOYS

#12
20240158894
2024-05-16

ALUMINUM ALLOY FOR CASTING, ALUMINUM ALLOY MEMBER, AND METHOD FOR MANUFACTURING ALUMINUM ALLOY MEMBER

#13
20240141529
2024-05-02

METHOD FOR PRODUCING METAL ALUMINUM BY MOLTEN SALT ELECTROLYSIS OF ALUMINUM OXIDE

#14
20240093331
2024-03-21

METHOD FOR RECYCLING ALUMINUM ALLOY SCRAP

#15
20240035138
2024-02-01

THICK PLATES MADE OF AL-CU-LI ALLOY WITH IMPROVED FATIGUE PROPERTIES

#16
20240035137
2024-02-01

WROUGHT PRODUCTS MADE OF 2XXX ALLOY HAVING AN OPTIMIZED CORROSION RESISTANCE, AND METHOD FOR OBTAINING SAME

#17
20230364674
2023-11-16

METHOD FOR THE OBTAINING OF COST EFFECTIVE GEOMETRICALLY COMPLEX PIECES

#18
20230272510
2023-08-31

Corrosion resistant high strength brazing sheet

#19
20230265923
2023-08-24

Soluble metal sealing ring with controllable dissolution rate and preparation process thereof

#20
20230227954
2023-07-20

LOW-DENSITY ALUMINUM-COPPER-LITHIUM ALLOY PRODUCTS

#21
20230220530
2023-07-13

USE OF PRODUCTS MADE FROM ALUMINIUM COPPER MAGNESIUM ALLOY THAT PERFORM WELL AT HIGH TEMPERATURE

#22
20230211440
2023-07-06

ALUMINIUM ALLOY MULTI-LAYERED BRAZING SHEET MATERIAL FOR FLUX-FREE BRAZING

#23
20230119583
2023-04-20

METHOD OF MANUFACTURING AN ALUMINIUM ALLOY ROLLED PRODUCT

#24
20220349040
2022-11-03

ALUMINUM-COPPER-LITHIUM ALLOY THIN SHEETS WITH IMPROVED TOUGHNESS, AND PROCESS FOR MANUFACTURING AN ALUMINUM-COPPER-LITHIUM ALLOY THIN SHEET

#25
20220325388
2022-10-13

Clad 2XXX-series aerospace product

#26
20220307119
2022-09-29

Methods of cold forming aluminum lithium alloys

#27
20220298618
2022-09-22

Steel sheet coated with a metallic coating based on aluminum

#28
20220228230
2022-07-21

CLAD 2XXX-SERIES AEROSPACE PRODUCT

#29
20220106673
2022-04-07

Method for manufacturing aluminum alloy member

#30
20220056562
2022-02-24

Method of producing a high-energy hydroformed structure from a 2XXX-series alloy

#31
20220033937
2022-02-03

Method of manufacturing a 2xxx-series aluminium alloy plate product having improved fatigue failure resistance

#32
20220017981
2022-01-20

Method for forming aluminum alloy thin-walled curved part by ultra-low temperature gradient drawing

#33
20210404038
2021-12-30

2XXX aluminum lithium alloys

#34
20210388471
2021-12-16

ALUMINUM ALLOY, WIRE AND CONNECTING ELEMENT MADE OF THE ALUMINUM ALLOY

#35
20210388470
2021-12-16

Metal sheet made of high-strength 2XXX alloy for an aircraft fuselage

#36
20210363617
2021-11-25

Aluminum alloy composition and manufacturing method thereof

#37
20210340657
2021-11-04

Method of producing a high-energy hydroformed structure from a 2XXX-series alloy

#38
20210340650
2021-11-04

Highly corrosion-resistant plated steel sheet having excellent plating adhesion and resistance to liquid metal embrittlement

#39
20210310108
2021-10-07

ALUMINUM-COPPER-LITHIUM ALLOY HAVING IMPROVED COMPRESSIVE STRENGTH AND IMPROVED TOUGHNESS

#40
20210277508
2021-09-09

Aluminum alloy with additions of copper, lithium and at least one alkali or rare earth metal, and method of manufacturing the same

#41
20210269898
2021-09-02

FORGED ALUMINUM ALLOY AND MANUFACTURING METHOD FOR THE SAME

#42
20210269897
2021-09-02

Corrosion resistant high strength brazing sheet

#43
20210269893
2021-09-02

Method for regenerating copper-containing aluminum alloy from aluminum alloy scrap

#44
20210262065
2021-08-26

2XXX ALUMINUM ALLOYS

#45
20210238715
2021-08-05

ALUMINUM ALLOY COMPOSITION AND MANUFACTURING METHOD THEREOF

#46
20210207254
2021-07-08

Al-Cu-Li-Mg-Mn-Zn ALLOY WROUGHT PRODUCT

#47
20210189538
2021-06-24

METHOD FOR MANUFACTURING AN ALUMINUM-COPPER-LITHIUM ALLOY HAVING IMPROVED COMPRESSIVE STRENGTH AND IMPROVED TOUGHNESS

#48
20210170478
2021-06-10

Powder metal alloy composition for sintered powder metal insert for aluminum casting

#49
20210140474
2021-05-13

MONOTECTIC ALUMINUM PLAIN BEARING ALLOY, METHOD FOR PRODUCING SAME, AND PLAIN BEARING PRODUCED THEREWITH

#50
20210087665
2021-03-25

ALUMINUM-COPPER-LITHIUM ALLOY PRODUCTS

#51
20210025663
2021-01-28

ALUMINUM ALLOY HEAT EXCHANGER FOR EXHAUST GAS RECIRCULATION SYSTEM

#52
20200300297
2020-09-24

Al-based bearing alloy and slide bearing using same

#53
20200277691
2020-09-03

Aluminum alloys, and methods for producing the same

#54
20200270731
2020-08-27

Substantially Pb-Free Aluminum Alloy Composition

#55
20200239991
2020-07-30

ALUMINUM ALLOY ROLLED MATERIAL FOR MOLDING, WITH IMPROVED PRESS FORMABILITY, BENDING WORKABILITY, AND RIDGING RESISTANCE

#56
20200165707
2020-05-28

ALUMINUM ALLOY COMPRISING LITHIUM WITH IMPROVED FATIGUE PROPERTIES

#57
20200130770
2020-04-30

Materials and Construction for High-Strength, Light-Weight Bicycle

#58
20200109744
2020-04-09

THREE-MATERIAL ROLL-BONDED SLIDING BEARING HAVING TWO ALUMINIUM LAYERS

#59
20200095664
2020-03-26

HIGH-STRENGTH 6XXX ALUMINUM ALLOYS AND METHODS OF MAKING THE SAME

#60
20200056269
2020-02-20

High-strength aluminum alloy and high- strength aluminum alloy casting

#61
20200032378
2020-01-30

Low-density aluminum-copper-lithium alloy products

#62
20190316230
2019-10-17

Aluminum alloy and fastener member

#63
20190284669
2019-09-19

Method for manufacturing aluminum alloy member

#64
20190233921
2019-08-01

Low Cost, Low Density, Substantially Ag-Free and Zn-Free Aluminum-Lithium Plate Alloy for Aerospace Application

#65
20190218651
2019-07-18

Steel sheet coated with a metallic coating based on aluminum

#66
20190203326
2019-07-04

ALUMINUM ALLOY, WIRE AND CONNECTING ELEMENT MADE OF THE ALUMINUM ALLOY

#67
20190169727
2019-06-06

Low Cost, Substantially Zr-Free Aluminum-Lithium Alloy for Thin Sheet Product with High Formability

#68
20190153577
2019-05-23

Method of making 6XXX aluminium sheets

#69
20190119800
2019-04-25

Method for producing aluminum alloy rolled material for molding having excellent bending workability and ridging resistance

#70
20190085431
2019-03-21

Aluminum alloys with improved intergranular corrosion resistance properties and methods of making and using the same

#71
20190040508
2019-02-07

THICK PLATES MADE OF AL-CU-LI ALLOY WITH IMPROVED FATIGUE PROPERTIES

#72
20190039125
2019-02-07

SECONDARY CAST ALUMINUM ALLOY FOR STRUCTURAL APPLICATIONS

#73
20190032180
2019-01-31

Low density aluminum-copper-lithium alloy extrusions

#74
20190024220
2019-01-24

ALUMINUM-BASED ALLOY

#75
20190003025
2019-01-03

Substantially Pb-Free Aluminum Alloy Composition

#76
20180363114
2018-12-20

ALUMINUM COPPER LITHIUM ALLOY WITH IMPROVED MECHANICAL STRENGTH AND TOUGHNESS

#77
20180345420
2018-12-06

Multi-layered aluminium brazing sheet material

#78
20180327890
2018-11-15

Aluminum alloy compositions and methods of making and using the same

#79
20180312944
2018-11-01

EXTRUDED PRODUCT MADE FROM AL-CU-MG ALLOY WITH IMPROVED COMPROMISE BETWEEN MECHANICAL RESISTANCE AND TOUGHNESS

#80
20180291489
2018-10-11

ALUMINUM ALLOY WITH ADDITIONS OF COPPER, LITHIUM AND AT LEAST ONE ALKALI OR RARE EARTH METAL, AND METHOD OF MANUFACTURING THE SAME

#81
20180282843
2018-10-04

Aluminum-alloy clad material and method of manufacturing the same

#82
20180274063
2018-09-27

ALUMINUM ALLOYS FOR HIGHLY SHAPED PACKAGING PRODUCTS AND METHODS OF MAKING THE SAME

#83
20180178289
2018-06-28

Aluminum alloy powder metal compact

#84
20180171449
2018-06-21

Manufacturing process for obtaining high strength solid extruded products made from 6XXX aluminium alloys for towing eye

#85
20180149199
2018-05-31

Rolling bearing cage or rolling bearing cage segment, and method for manufacturing a rolling bearing cage or rolling bearing cage segment

#86
20180133844
2018-05-17

Welding electrode wires having alkaline earth metals

#87
20180127853
2018-05-10

Aluminum alloy for cylinder head and method of manufacturing the same

#88
20180126456
2018-05-10

Metal-Nanostructure Composites

#89
20180119262
2018-05-03

High strength 7XXX series aluminum alloys and methods of making the same

#90
20170335437
2017-11-23

Aluminum alloy compositions and methods of making and using the same

#91
20170248167
2017-08-31

Composite material for a sliding bearing comprising an aluminum bearing metal layer

#92
20170246710
2017-08-31

Multi-layered aluminium brazing sheet material

#93
20170233856
2017-08-17

FEEDSTOCK FOR METAL FOIL PRODUCT AND METHOD OF MAKING THEREOF

#94
20170226617
2017-08-10

Method of thermomagnetically processing an aluminum alloy

#95
20170175240
2017-06-22

High-strength 6XXX aluminum alloys and methods of making the same

#96
20170175233
2017-06-22

Aluminum microstructure for highly shaped products and associated methods

#97
20170173741
2017-06-22

Aluminium alloy laminated plate

#98
20170044650
2017-02-16

Heat treatment for reducing distortion

#99
20160368588
2016-12-22

EXTRUDED PRODUCTS FOR AEROPLANE FLOORS MADE OF AN ALUMINIUM-COPPER-LITHIUM ALLOY

#100
20160355916
2016-12-08

Method for manufacturing products made of aluminum-copper-lithium alloy with improved fatigue properties, and distributor for this method

#101
20160348225
2016-12-01

6xxx aluminum alloys and methods of making the same

#102
20160304995
2016-10-20

Method for transforming Al—Cu—Li alloy sheets improving formability and corrosion resistance

#103
20160265090
2016-09-15

Aluminum alloys for highly shaped packaging products and methods of making the same

#104
20160250720
2016-09-01

Multilayer brazing sheet for vacuum braze applications

#105
20160245296
2016-08-25

Al alloy cast impeller for compressor and process for producing same

#106
20160243656
2016-08-25

Aluminum metal-cored welding wire

#107
20160243638
2016-08-25

Systems and methods for additive manufacturing using aluminum metal-cored wire

#108
20160237586
2016-08-18

Processes to reduce interfacial enrichment of alloying elements under anodic oxide films and improve anodized appearance of heat treatable alloys

#109
20160237532
2016-08-18

Aluminium-copper-lithium alloy products with improved fatigue properties

#110
20160201435
2016-07-14

Fresh water degradable downhole tools comprising magnesium and aluminum alloys

#111
20160194728
2016-07-07

Methods of forming a workpiece made of a naturally aging alloy

#112
20160168665
2016-06-16

High heat-resistant aluminium casting alloy and casting for combustion engines cast from such an alloy

#113
20160168664
2016-06-16

Reduced Conductivity and Unique Electro-Magnetic Signature Zinc Alloy

#114
20160153074
2016-06-02

Aluminum alloy

#115
20160122842
2016-05-05

Aluminum copper clad material

#116
20160115576
2016-04-28

High strength, high formability, and low cost aluminum-lithium alloys

#117
20160108505
2016-04-21

METHOD FOR PRODUCING STARTING MATERIAL FOR CUTTING

#118
20160101488
2016-04-14

Brazing sheet

#119
20160083818
2016-03-24

Aluminum alloy materials suitable for the manufacture of automotive body panels and methods for producing the same

#120
20160052052
2016-02-25

Method for producing alluminum alloy

#121
20160047022
2016-02-18

Aluminum-copper alloys with improved strength

#122
20160030992
2016-02-04

HOT-STAMPING TAILOR-WELDED BLANKS OF ALUMINUM SHEET

#123
20160017457
2016-01-21

Method for treating sheet metal

#124
20160001366
2016-01-07

Aluminum alloy powder metal compact

#125
20160001345
2016-01-07

Value stream process for forming vehicle rails from extruded aluminum tubes

#126
20150322556
2015-11-12

LITHIUM FREE ELEVATED TEMPERATURE ALUMINUM COPPER MAGNESIUM SILVER ALLOY FOR FORGED AEROSPACE PRODUCTS

#127
20150315688
2015-11-05

Cast aluminum alloy components

#128
20150299837
2015-10-22

Method for manufacturing a structural element having a variable thickness for aircraft production

#129
20150283607
2015-10-08

APPARATUS AND METHOD FOR MANUFACTURING A TURBOCHARGER COMPONENT

#130
20150079417
2015-03-19

ANTI-CORROSION AND ANTI-EROSION PROTECTIVE LAYER CONTAINING ALUMINIUM

#131
20150064058
2015-03-05

Method of manufacturing aluminum-zinc-based alloy sheet using twin-roll casting and aluminum-zinc-based alloy sheet manufactured thereby

#132
20150053363
2015-02-26

Method for manufacturing composite double-metal fracture splitting connecting rod

#133
20150050520
2015-02-19

Aluminum alloy material, aluminum alloy structure, and manufacturing method for same

#134
20150000799
2015-01-01

2XXX series aluminum lithium alloys having low strength differential

#135
20140367000
2014-12-18

ALUMINUM-LITHIUM ALLOYS, AND METHODS FOR PRODUCING THE SAME

#136
20140341678
2014-11-20

Aluminum alloy strip with improved surface appearance

#137
20140050936
2014-02-20

2XXX SERIES ALUMINUM LITHIUM ALLOYS

#138
20130302206
2013-11-14

2xxx series aluminum lithium alloys

#139
20130068411
2013-03-21

Aluminium-copper alloy for casting

#140
20130047784
2013-02-28

Aluminum alloy powder metal compact

#141
20120312427
2012-12-13

HIGH-STRENGTH ALUMINUM ALLOY PRODUCT AND METHOD OF PRODUCING THE SAME

#142
20120273098
2012-11-01

Method for producing a structural sheet metal component, and a structural sheet metal component

#143
20120225271
2012-09-06

2XXX SERIES ALUMINUM LITHIUM ALLOYS

#144
20120132324
2012-05-31

Aluminum-copper-lithium alloys

#145
20120000578
2012-01-05

Cast aluminum alloys

#146
20110247730
2011-10-13

2XXX series aluminum lithium alloys having low strength differential

#147
20110085932
2011-04-14

Method of forming high strength aluminum alloy parts containing L1intermetallic dispersoids by ring rolling

#148
20100304175
2010-12-02

HIGH STRENGTH MULTI-LAYER BRAZING SHEET STRUCTURES WITH GOOD CONTROLLED ATMOSPHERE BRAZING (CAB) BRAZEABILITY

#149
20100084053
2010-04-08

FEEDSTOCK FOR METAL FOIL PRODUCT AND METHOD OF MAKING THEREOF

#150
20100059151
2010-03-11

HIGH-STRENGTH ALUMINUM ALLOY PRODUCT AND METHOD OF PRODUCING THE SAME

#151
20100006186
2010-01-14

ALUMINUM ALLOY PRODUCTS WITH HIGH TOUGHNESS AND PRODUCTION PROCESS THEREOF

#152
20090142222
2009-06-04

Aluminum-copper-lithium alloys

#153
20080210350
2008-09-04

Aircraft structural member made of an Al-Cu-Mg alloy

#154
20080206087
2008-08-28

Plain bearing and method of manufacturing the same

#155
20080115865
2008-05-22

Aluminum-based alloy and method of fabrication of semiproducts thereof

#156
20080110576
2008-05-15

Mold for pressing a multilayer press stack, in particular for arrangement in a press and/or stack structure for pressing multilayer composites and/or a press for pressing and/or producing multilayer composites

#157
20080060723
2008-03-13

Aluminum alloy for engine components

#158
20070264149
2007-11-15

Reinforced aluminum alloy and its process of manufacture

#159
20070262120
2007-11-15

Lubricant for Quick Plastic Forming of Aluminum Sheet

#160
20070246137
2007-10-25

Method of making a structural element for aeronautical construction comprising differential work-hardening

#161
20070187006
2007-08-16

ALUMINUM ALLOY CONTAINING COPPER AND ZINC

#162
20060108030
2006-05-25

Aluminum alloy for cutting processing, and aluminum alloy worked article made of the same

#163
20060090875
2006-05-04

Continuous casting apparatus, continuous casting method and aluminum alloy cast bar

#164
20060065331
2006-03-30

Aluminum alloy products with high toughness and production process thereof

#165
20050271543
2005-12-08

Aluminum-based alloy and method of fabrication of semiproducts thereof

#166
20050221110
2005-10-06

Plain bearing and method of manufacturing the same

#167
18915343
2025-10-28

Efficient aging methods for aluminum-lithium alloys based on dynamic strain precipitation