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Color Curly Brackets (indicating CPC extensions to IPC)

CPC
COOPERATIVE PATENT CLASSIFICATION
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INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
NOTE
-
This subclass constitutes an internal scheme for indexing only.

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F05C 2201/00
Metals
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F05C 2201/02
.
Light metals
F05C 2201/021
. .
Aluminium
F05C 2201/023
. .
Beryllium
F05C 2201/025
. .
Boron
F05C 2201/026
. .
Lithium
F05C 2201/028
. .
Magnesium
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F05C 2201/04
.
Heavy metals
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F05C 2201/0403
. .
Refractory metals, e.g. V, W
F05C 2201/0406
. . .
Chromium
F05C 2201/0409
. . .
Molybdenum
F05C 2201/0412
. . .
Titanium
F05C 2201/0415
. . .
Zirconium
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F05C 2201/0418
. .
Noble metals
F05C 2201/0421
. . .
Silver
F05C 2201/0424
. . .
Gold
F05C 2201/0427
. . .
Platinum group, e.g. Pt, Ir
F05C 2201/043
. .
Rare earth metals, e.g. Sc, Y
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F05C 2201/0433
. .
Iron group; Ferrous alloys, e.g. steel
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F05C 2201/0436
. . .
Iron
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F05C 2201/0439
. . . .
Cast iron
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F05C 2201/0442
. . . . .
Spheroidal graphite cast iron, e.g. nodular iron, ductile iron
F05C 2201/0445
. . . . . .
Austempered ductile iron (ADI)
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F05C 2201/0448
. . .
Steel
F05C 2201/0451
. . . .
Cast steel
F05C 2201/0454
. . . .
Case-hardened steel
F05C 2201/0457
. . . .
Cemented steel
F05C 2201/046
. . . .
Stainless steel or inox, e.g. 18-8
F05C 2201/0463
. . .
Cobalt
F05C 2201/0466
. . .
Nickel
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F05C 2201/0469
. .
Other heavy metals
F05C 2201/0472
. . .
Cadmium
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F05C 2201/0475
. . .
Copper or alloys thereof
F05C 2201/0478
. . . .
Bronze (Cu/Sn alloy)
F05C 2201/0481
. . . .
Brass (Cu/Zn alloy)
F05C 2201/0484
. . . .
Nickel-Copper alloy, e.g. monel
F05C 2201/0487
. . .
Manganese
F05C 2201/049
. . .
Lead
F05C 2201/0493
. . .
Tin
F05C 2201/0496
. . .
Zinc
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F05C 2201/90
.
Alloys not otherwise provided for
F05C 2201/903
. .
Aluminium alloy, e.g. AlCuMgPb F34,37
F05C 2201/906
. .
Phosphor-bronze alloy
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Guide Heading:
Inorganic materials
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F05C 2203/00
Non-metallic inorganic materials
F05C 2203/02
.
Glass
F05C 2203/04
.
Phosphor
F05C 2203/06
.
Silicon
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F05C 2203/08
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Ceramics; Oxides
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F05C 2203/0804
. .
Non-oxide ceramics
F05C 2203/0808
. . .
Carbon, e.g. graphite
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F05C 2203/0813
. . .
Carbides
F05C 2203/0817
. . . .
of silicon
F05C 2203/0821
. . . .
of titanium, e.g. TiC
F05C 2203/0826
. . . .
of wolfram, e.g. tungsten carbide
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F05C 2203/083
. . .
Nitrides
F05C 2203/0834
. . . .
of aluminium
F05C 2203/0839
. . . .
of boron
F05C 2203/0843
. . . .
of silicon
F05C 2203/0847
. . . .
of titanium
F05C 2203/0852
. . . .
of zirconium
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F05C 2203/0856
. . .
Sulfides
F05C 2203/086
. . . .
of molybdenum
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F05C 2203/0865
. .
not used, see subgroups
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F05C 2203/0869
. . .
Aluminium oxide
F05C 2203/0873
. . . .
Sapphire
F05C 2203/0878
. . .
Aluminium titanate
F05C 2203/0882
. . .
Carbon, e.g. graphite
F05C 2203/0886
. . .
Silica
F05C 2203/0891
. . .
Zinc oxide
F05C 2203/0895
. . .
Zirconium oxide
F05C 2211/00
Inorganic materials not otherwise provided for

F05C 2221/00
Leather
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Guide Heading:
Organic materials
F05C 2223/00
Cellulosic materials, e.g. wood
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F05C 2225/00
Synthetic polymers, e.g. plastics; Rubber
F05C 2225/02
.
Rubber
F05C 2225/04
.
PTFE (PolyTetraFluorEthylene)
F05C 2225/06
.
Polyamides, e.g. NYLON
F05C 2225/08
.
Thermoplastics
F05C 2225/10
.
Polyimides, e.g. Aurum
F05C 2225/12
.
Polyetheretherketones, e.g. PEEK
F05C 2231/00
Organic materials not otherwise provided for

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F05C 2251/00
Material properties
F05C 2251/02
.
Elasticity
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F05C 2251/04
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Thermal properties
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F05C 2251/042
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Expansivity
F05C 2251/044
. . .
similar
F05C 2251/046
. . .
dissimilar
F05C 2251/048
. .
Heat transfer
F05C 2251/06
.
Reflective properties
F05C 2251/08
.
Shape memory
F05C 2251/10
.
Hardness
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F05C 2251/12
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Magnetic properties
F05C 2251/125
. .
non-magnetic
F05C 2251/14
.
Self lubricating materials; Solid lubricants
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Guide Heading:
Material properties or characteristics
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F05C 2253/00
Other material characteristics; Treatment of material
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F05C 2253/02
.
Fabric
F05C 2253/025
. .
woven
F05C 2253/04
.
Composite, e.g. fibre-reinforced
F05C 2253/06
.
Amorphous
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F05C 2253/08
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Crystalline
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F05C 2253/083
. .
Directionally-solidified crystalline structure
F05C 2253/0831
. . .
monocrystalline
F05C 2253/10
.
Syntactic
F05C 2253/12
.
Coating
F05C 2253/14
.
Foam
F05C 2253/16
.
Fibres
F05C 2253/18
.
Filler
F05C 2253/20
.
Resin
F05C 2253/22
.
Reinforcements
F05C 2253/24
.
Heat treatment
This page is owned by Office of Patent Classification.
Last Modified: 10/10/2013