| Outline |
Indent Level
| |
| Color | Curly Brackets (indicating CPC extensions to IPC) | |
CPC | COOPERATIVE PATENT CLASSIFICATION | ||
 | F05C 2201/00 | Metals |
| 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 |
| F05C 2201/04 | . | Heavy metals |
| 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 |
| F05C 2201/0418 | . . | Noble metals |
F05C 2201/043 | . . | Rare earth metals, e.g. Sc, Y |
| F05C 2201/0433 | . . | Iron group; Ferrous alloys, e.g. steel |
| F05C 2201/0436 | . . . | Iron |
| 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 |
| F05C 2201/0469 | . . | Other heavy metals |
F05C 2201/0472 | . . . | Cadmium |
| 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 |
| F05C 2201/90 | . | Alloys not otherwise provided for |
F05C 2201/903 | . . | Aluminium alloy, e.g. AlCuMgPb F34,37 |
F05C 2201/906 | . . | Phosphor-bronze alloy |
| Guide Heading: | Inorganic materials |
| F05C 2203/00 | Non-metallic inorganic materials |
F05C 2203/02 | . | Glass |
F05C 2203/04 | . | Phosphor |
F05C 2203/06 | . | Silicon |
| F05C 2203/08 | . | Ceramics; Oxides |
| F05C 2203/0804 | . . | Non-oxide ceramics |
F05C 2203/0808 | . . . | Carbon, e.g. graphite |
| 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 |
| 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 |
| F05C 2203/0856 | . . . | Sulfides |
| F05C 2203/0865 | . . | not used, see subgroups |
F05C 2211/00 | Inorganic materials not otherwise provided for |
| Guide Heading: | Organic materials |
F05C 2223/00 | Cellulosic materials, e.g. wood |
| 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 |
| F05C 2251/00 | Material properties |
| Guide Heading: | Material properties or characteristics |
| F05C 2253/00 | Other material characteristics; Treatment of material |
| F05C 2253/02 | . | Fabric |
F05C 2253/04 | . | Composite, e.g. fibre-reinforced |
F05C 2253/06 | . | Amorphous |
| F05C 2253/08 | . | Crystalline |
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 |
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Last Modified: 04/16/2013 4:31:16 PM